(medicine) A birth defect in which the head is absent
acephalus
acephalus
noun
(medicine, countable) A fetus affected by acephaly.
(medicine, uncountable) The condition of acephaly.
achropsia
acidophil
acidophil
noun
(immunology) An eosinophil; a white blood cell responsible for combating infection by parasites in the body.
One of the endocrine acidophilic cells of the adenohypophysis, including somatotrophs and lactotrophs.
acropathy
acropathy
noun
Any disease specific to the extremities.
acrophony
acrophony
noun
The naming of letters in an alphabetic writing system using words whose initial sounds are represented by the respective letters.
actorship
actorship
noun
The state or quality associated with being an actor.
adelphian
adelphous
adelphous
adj
(botany) Having coalescent or clustered filaments.
adephagan
adephagan
noun
Any of many beetles of the suborder Adephaga.
adephagia
adeptship
adeptship
noun
The role or status of an adept.
adiaphora
adiaphora
noun
(nonstandard, uncommon) in singular use
plural of adiaphoron
adiaphory
adiaphory
noun
(obsolete) indifference
aegophony
aegophony
noun
Alternative form of egophony
aerograph
aerograph
noun
A kind of airbrush.
aeropathy
aeropathy
noun
illness caused by a change in atmospheric pressure
aerophagy
aerophagy
noun
(medicine) the swallowing of air, especially in hysteria.
aerophane
aerophane
noun
A thin fabric resembling crape
aerophile
aerophile
noun
(biology) Any air-breathing organism.
One who has an interest in flying.
aerophone
aerophone
noun
(dated) A form of combined speaking trumpet and ear trumpet.
(dated) An instrument for greatly intensifying speech, consisting of a phonograph diaphragm arranged so that its action opens and closes valves, producing synchronous air blasts sufficient to operate a larger diaphragm with greater amplitude of vibration.
Any musical instrument which produces sound primarily by causing a body of air to vibrate, without the use of strings or membranes, and without the vibration of the instrument itself adding considerably to the sound.
aerophore
aerophore
noun
(botany) A thin-walled area of the roots of some plants growing in swampy conditions through which gasses are exchanged.
(historical) A nineteenth-century device with breathing tubes used by miners and workmen in areas that contain toxic fumes.
(historical) A predecessor of the radio, invented by Rene Homer in the early 1900s for communication between ships.
(medicine) Aerophore pulmonaire; a respirator for use with neonates and small animals developed by French obstetrician Gairal in 1879.
(underwater diving, historical) A predecessor of the aqualung, invented by Benoit Rouquayrol and Auguste Denayrouze 1865
aerophoto
aerophoto
noun
Alternative form of aerophotograph
aerophyte
aerophyte
noun
(biology) epiphyte
afterhelp
afterhope
aftership
agentship
agentship
noun
(countable) The office or position of an agent.
(uncountable) A means of effecting something; agency.
aglyphous
aglyphous
adj
(of a snake) Whose teeth are not specialized, especially whose teeth lack grooves for venom.
agraphias
agraphias
noun
plural of agraphia
airphobia
alephzero
algraphic
algraphic
adj
Of or pertaining to algraphy.
alienship
alienship
noun
The state or status of being alien.
aliphatic
aliphatic
adj
(organic chemistry) Of a class of organic compounds in which the carbon atoms are arranged in an open chain.
noun
(chiefly in the plural) A petroleum fraction containing no aromatic compounds
A compound of this type.
alispheno
alkaphrah
allograph
allograph
noun
A signature made by one person for another.
A variant form of a letter (or other grapheme).
allomorph
allomorph
noun
(chemistry) Any of the different crystalline forms of a substance.
(linguistics) Any of the different phonological representations of a morpheme.
allopaths
allopaths
noun
plural of allopath
allopathy
allopathy
noun
(countable) A conventional Western medical method or treatment.
(uncountable, originally) A system of alternative medicine that treats symptoms with substances that produce the opposite effect.
allophane
allophane
noun
(mineralogy) An amorphous hydrous aluminium silicate clay mineral
allophite
allophone
allophone
adj
(Canada) Of or relating to those whose mother tongue is neither English, French, nor (sometimes) an indigenous language of Canada.
That which is of a language other than that spoken by the majority.
noun
(Canada) A person whose mother tongue is neither English, French, nor (sometimes) an indigenous language of Canada.
(phonology) Any of two or more alternative pronunciations for a phoneme.
A person whose mother tongue is one other than that spoken by the majority.
allophore
allophyle
alopathic
alpenhorn
alpenhorn
noun
Alternative spelling of alphorn
alphabets
alphabets
noun
plural of alphabet
verb
Third-person singular simple present indicative form of alphabet
alphatype
alpheratz
alpheratz
Proper noun
A binary star in the constellation of Andromeda (formerly seen as part of Pegasus).
alphonist
alphonsin
alphonsin
noun
Alternative form of Alphonsin
alphonsus
alsophila
altigraph
altigraph
noun
An altimeter that makes a recording on a chart.
amidships
amidships
adv
(figuratively) On the flank, at a vulnerable place.
(nautical) In the middle of a ship, either longitudinally or laterally.
(nautical) Usually in the line of the keel, but sometimes halfway between bow and stern; often contracted to “midships.” (FM 55-501).
intj
A helm order, normally shortened to midships!, to centre the helm in the line of the keel.
ammophila
amorphism
amorphism
noun
An amorphous quality.
amorphous
amorphous
adj
(by extension) Being without definite character or nature.
(by extension) Lacking organization or unity.
(physics) In the non-crystalline solid state of a typically crystalline solid.
(set theory, of a set) Infinite and not the disjoint union of two infinite subsets.
Lacking a definite form or clear shape.
amphibali
amphibial
amphibial
adj
Archaic form of amphibian.
amphibian
amphibian
adj
(obsolete) Having two natures.
Capable of operating on both land and water amphibious.
Of or relating to the class Amphibia.
noun
A vehicle which can operate on land and water. See Wikipedia article on "Amphibious aircraft"
An animal of the Amphibia; any four-legged vertebrate that does not have amniotic eggs, living both on land and in water.
amphibion
amphibium
amphibium
noun
(archaic) An amphibian.
amphibola
amphibole
amphibole
noun
(mineralogy) Any of a large group of structurally similar hydrated double silicate minerals, containing various combinations of sodium, calcium, magnesium, iron, and aluminium/aluminum
amphiboly
amphiboly
noun
(grammar) An ambiguous grammatical construction.
amphicome
amphicome
Noun
A kind of figured stone, rugged and beset with eminences, anciently used in divination.
amphicyon
amphidisc
amphidisc
noun
(zoology) A small siliceous spicule having a denticulate wheel at each end, found in freshwater sponges.
amphidisk
amphigaea
amphigean
amphigean
adj
Extending over all the zones of the Earth, from the tropics to the poles.
amphigene
amphigene
noun
(mineralogy) Leucite.
amphigony
amphigony
noun
(obsolete) sexual reproduction
amphigory
amphigory
noun
A nonsense verse; a rigmarole, with apparent meaning, which on further attention proves to be meaningless.
amphilogy
amphilogy
noun
ambiguity of speech; equivocation
amphinome
amphionic
amphioxis
amphioxus
amphioxus
noun
The lancelet, particularly of the genus Branchiostoma.
amphipoda
amphipods
amphipods
noun
plural of amphipod
amphiscii
amphiscii
noun
amphiscians
amphisile
amphissus
amphitene
amphitoky
amphitron
amphitruo
amphogeny
ampholyte
ampholyte
noun
(chemistry) An amphoteric electrolyte
amphophil
amphophil
noun
(cytology) Any amphophilic cell
amphorous
anaglyphs
anaglyphs
noun
plural of anaglyph
anaglyphy
anaphalis
anaphases
anaphases
noun
plural of anaphase
anaphasic
anaphasic
adj
(cytology) Relating to the anaphase.
anaphoral
anaphoral
adj
(Christianity) Relating to the anaphora.
anaphoras
anaphoras
noun
plural of anaphora
anaphoria
anaphoria
Noun
A tendency for both eyes to look upward.
anaphoric
anaphoric
adj
Of, or relating to, an anaphora.
anaptychi
anaptychi
noun
plural of anaptychus
angelship
anglophil
anopheles
anopheles
noun
(entomology) Loose terminology for species in the Anopheles genus of mosquitoes, some of which may transmit various parasites, Plasmodium, that are the cause of malaria. More strictly speaking, as Anopheles is a proper name it should be capitalised.
anophoria
antapocha
anteporch
anthocarp
anthocarp
noun
(botany) A collective, composite or aggregated fruit formed from an entire inflorescence, as in the sorosis of a pineapple or the syconus of a fig.
(botany) A composite false fruit, consisting of the actual fruit and the perianth.
(botany) A fruit formed by the union of the floral organs or part of them, with the fruit itself, as in Nyctagineae; also applied to fruits with accessories, sometimes termed pseudocarps, as the strawberry and pineapple.
(botany) A fruit resulting from many flowers, such as the pineapple; a fruit of which the perianth or the torus forms part.
(botany) In the Nyctaginaceae, individual apetalous flowers have a tubular, petaloid calyx that resembles a sympetalous corolla. The lower portion of the calyx tightly enwraps the one-seeded achene and is persistent around the fruit as an anthocarp. The calyx base plus the enclosed seed-bearing achene is the unit of dispersal.
(botany) Lower part of a perianth containing the fruit, the upper part having dropped away, well seen in plants of the family Nyctaginaceae.
anthropic
anthropic
adj
Of or pertaining to mankind or humans, or the period of humanity's existence.
anthropol
anthropos
anthropos
Proper noun
The primordial man/humanity.
antigraph
antigraph
noun
(obsolete) A copy or transcript.
(textual criticism) A manuscript from which a copy (apograph) is made.
antipasch
antipathy
antipathy
noun
A feeling of dislike (normally towards someone, less often towards something); repugnance or distaste often without any conscious reasoning.
Natural contrariety or incompatibility
antiphase
antiphase
adj
(sciences) Describing a boundary between an ordered phase and a disordered or random phase
noun
(physics, mathematics) A difference in phase (of two waves) of 180°
antiphona
antiphons
antiphons
noun
plural of antiphon
antiphony
antiphony
noun
(music, singing) alternate, or responsive singing by a choir split into two parts; a piece sung or chanted in this manner
alternate, or responsive ideas or opinions; juxtaposition
apachette
apalachee
apalachin
apartheid
apartheid
noun
(South Africa, historical) The policy of racial separation used by South Africa from 1948 to 1990.
(by extension) A policy or situation of segregation based on some specified attribute.
(by extension) Any similar policy of racial separation/segregation and discrimination.
verb
To impose a policy of segregation of groups of people, especially one based on race.
apathaton
apathetic
apathetic
adj
Of, or pertaining to apatheism.
Void of feeling; not susceptible of deep emotion.
aphanisia
aphanisis
aphanisis
noun
(psychology) The disappearance of sexual desire, supposed to be the foundation of all neuroses.
aphanites
aphanites
noun
plural of aphanite
aphanitic
aphanitic
adj
(geology, petrology) Pertaining to aphanites, igneous rocks composed of microscopic mineral crystals (fine grains too small to be visible to the naked eye.
aphasiacs
aphasiacs
noun
plural of aphasiac
aphelilia
aphelinus
apheresis
apheresis
noun
(linguistics, prosody) Elision, suppression, or complete loss of a letter or sound (syllable) from the beginning of a word, such as the development of special from especial; procope.
(medicine, general, obsolete) Extirpation or extraction of a superfluity (especially a pathological one) from the body, especially blood.
(medicine, specific, still current) The removal of blood from a patient, and the removal of certain components (such as platelets) from that blood, followed by the transfusion of the filtered blood back to the donor (patient).
apheretic
apheretic
adj
US standard spelling of aphaeretic.
aphicidal
aphicidal
adj
That kills aphids
aphidians
aphidians
noun
plural of aphidian
aphididae
aphidious
aphidlion
aphidozer
aphidozer
noun
A device like a hopperdozer for the removal of aphids.
aphislion
aphlaston
aphnology
apholates
aphorised
aphorised
verb
simple past tense and past participle of aphorise
aphoriser
aphoriser
noun
An aphorist.
aphorises
aphorises
verb
Third-person singular simple present indicative form of aphorise
aphorisms
aphorisms
noun
plural of aphorism
verb
Third-person singular simple present indicative form of aphorism