(obsolete, zoology) An order of annelids, so called because the species composing it have no special organs of respiration, usually including Oligochaeta.
(obsolete, zoology)Any of a number of other groupings of gill-less animals.
abranchiate
abranchiate
adj
(zoology) Without gills.
noun
(zoology) An organism that does not have gills.
abranchious
abranchious
adj
Having no gills
absinthiate
absinthiate
verb
To impregnate with wormwood.
acacatechin
acacatechin
noun
An antioxidant for fatty oils obtained from Acacia catechu.
acanthodian
acanthodian
adj
Pertaining to Acanthodii.
noun
(zoology) A member of a group of extinct fish (Acanthodii) that existed from the Silurian to the Permian period.
acanthodini
acanthophis
accroaching
accroaching
verb
present participle of accroach
acetophenin
achaemenian
achaemenids
achatinella
achatinella
noun
Oahu tree snail (Achatinella spp.).
achatinidae
achievement
achievement
noun
(grammar, semantics) The lexical aspect (aktionsart) of verbs or predicates that change in an instant.
(heraldry) An escutcheon or ensign armorial; a full display or depiction of all the heraldic components to which the bearer of a coat of arms is entitled; (now especially) a funeral shield: the hatchment.
(sociology) The successful completion of a socially defined goal or task, highlighting individual or group accomplishment.
(video games) An award for completing a particular task or meeting an objective in a video game.
A great or heroic deed or feat; something accomplished by valor or boldness.
The act of achieving or performing; a successful performance; accomplishment.
achondrites
achondrites
noun
plural of achondrite
achondritic
achondritic
adj
(geology) Of or pertaining to achondrites, a type of stony meteorite.
achroglobin
acidanthera
acidanthera
noun
Any of the gladioli previously placed in the genus Acidanthera.
acouophonia
acquophonia
acrocorinth
acrophonies
acrophonies
noun
plural of acrophony
actinograph
actinograph
noun
A recording actinometer.
actinophone
actinophone
noun
An apparatus for the production of sound by the action of the actinic, or ultraviolet, rays.
actinophore
actinophore
noun
(biology) A cartilaginous spine that supports the fin rays of fish
actinophrys
adiaphanous
adiaphanous
adj
Not transparent; not translucent; not diaphanous; opaque.
admonishers
admonishers
noun
plural of admonisher
admonishing
admonishing
noun
admonishment
verb
present participle of admonish
adventurish
adventurish
adj
Somewhat connected with or indicative of adventure or adventurism.
adzharistan
aeneolithic
aeneolithic
adj
Alternative form of Eneolithic
affranchise
affranchise
verb
(transitive) To free from obligation, servitude or service.
affrighting
affrighting
verb
present participle of affright
afghanistan
agonistarch
agonistarch
noun
(Ancient Greece) One who trained persons to compete in public games and contests.
agonothetic
agonothetic
adj
Of or pertaining to an agonothete.
ahgwahching
ailanthuses
ailanthuses
noun
plural of ailanthus
airbrushing
airbrushing
verb
present participle of airbrush
airmanships
alcelaphine
alcelaphine
noun
(mammalogy) Any member of the subfamily Alcelaphinae of wildebeest, hartebeest, bonteboks and related species.
alchemising
alchemising
verb
present participle of alchemise
alchemizing
alchemizing
verb
present participle of alchemize
alexishafen
alightments
alightments
noun
plural of alightment
alisphenoid
alisphenoid
adj
(anatomy) Relating to a bone in the base of the skull, which in the adult is often consolidated with the sphenoid.
(anatomy) Relating to or forming the wing of the sphenoid bone.
noun
(anatomy) The greater wing of the sphenoid bone
alkanethiol
alkanethiol
noun
(organic chemistry) Any simple aliphatic thiol.
alleghanian
alleghenian
alleghenian
Adjective
Relating to the
alleghenies
alleghenies
Proper noun
The in south central Pennsylvania, western Maryland, eastern West Virginia, and western Virginia.
allophylian
allophylian
Adjective
Allophylic
allothigene
almonership
almonership
noun
The rank or office of an almoner.
alnagership
alnagership
noun
The role or status of an alnager.
alphabeting
alphabeting
verb
present participle of alphabet
amaranthine
amaranthine
adj
Of a dark reddish purple colour.
Relating to the mythical amaranth flower that never fades.
Relating to, or having the form of plants of the genus Amaranthus.
Unfading, eternal, immortal, infinite.
noun
A dark reddish-purple colour.
The amaranth flower.
amaranthoid
amelanchier
amelanchier
noun
Any tree or shrub in the genus Amelanchier of the pome fruit subtribe Malinae of the family Rosaceae, with edible, blueberry-like fruit.
amenorrheic
amenorrheic
adj
Alternative spelling of amenorrhoeic
amethystine
amethystine
adj
Like amethyst, especially in colour; violet-purple.
amianthuses
amianthuses
noun
plural of amianthus
amidophenol
aminophenol
aminophenol
noun
(organic chemistry) Any amino derivative of a phenol
(organic chemistry) Any of three isomeric amino derivatives of phenol; hydroxyaniline
amorphinism
amorphinism
noun
withdrawal symptoms from morphine
amphanthium
amphetamine
amphetamine
noun
(informal) Any mixture of the two amphetamine enantiomers, dextroamphetamine and levoamphetamine.
(informal, nonstandard) Referring to a substituted amphetamine; a member of the amphetamine class of chemicals.
(medicine, pharmacology) A potent central nervous system stimulant of the phenethylamine chemical class that is used to treat ADHD, narcolepsy, and obesity.
(organic chemistry, proper) The racemic freebase of 1-phenylpropan-2-amine; an equal parts mixture of levoamphetamine and dextroamphetamine in their pure amine forms.
amphiboline
amphicrania
amphicrania
noun
(pathology) A headache affecting both sides of the head.
amphictyons
amphictyons
noun
plural of amphictyon
amphictyony
amphictyony
noun
A religious foundation or co-operative shared between Greek city states during the classical period, typically to support the temple or cult of a deity shared by the city states. Also used academically to refer to similar arrangements in non-Greek cultures.
amphigenous
amphigenous
adj
(botany) Increasing in size by growth on all sides, as in the lichens.
(psychology, obsolete) Relating to a form of inversion where the desired partner may be either male or female, i.e. bisexuality.
amphigonium
amphigonous
amphigonous
adj
(biology) Relating to both parents.
amphikaryon
amphinesian
amphipneust
amphirhinal
amphisbaena
amphisbaena
noun
(mythology) A mythical serpent having a head at each end of its body, able to move in either direction.
A member of a genus of lizards, native to the Americas, having extremities which are very similar.
amphiscians
amphiscians
noun
plural of amphiscian
amphithuron
amphithyron
amyosthenia
amyosthenia
noun
(medicine) Myasthenia.
amyosthenic
amyosthenic
adj
Of or relating to amyosthenia.
noun
(medicine) A drug or agent that depresses muscular action.
anacanthine
anacanthini
anachronism
anachronism
noun
A chronological mistake; the erroneous dating of an event, circumstance, or object. [from 17th c.]
A person or thing which seems to belong to a different time or period of time. [from 19th c.]
The aberrant projection of the present onto the past.
anachronist
anachronist
noun
A person who has anachronistic views or habits
anachronize
anachronize
verb
To refer to, or put into, a wrong time.
anacoluthia
anacoluthia
noun
(grammar) A syntactic construction in which an element is followed by another that does not agree properly
anacoluthic
anacoluthic
adj
Of, pertaining to, being, or resembling an anacoluthon.
anaesthatic
anaesthesia
anaesthesia
noun
(British spelling) Alternative spelling of anesthesia
anaesthesis
anaesthesis
noun
loss of feeling; insensibility
anaesthetic
anaesthetic
adj
(British spelling) Alternative spelling of anesthetic
anaglyphics
anaglyphics
noun
plural of anaglyphic
anakoluthia
anamorphism
anamorphism
noun
(computer science) a generalization of the list-producing unfolds known from functional programming to arbitrary abstract data types that can be described as final coalgebras
anaphorical
anaphorical
adj
Synonym of anaphoric
anaphylaxis
anaphylaxis
noun
A severe and rapid systemic allergic reaction to an allergen, causing a constriction of the trachea, preventing breathing; anaphylactic shock.
Extreme sensitivity to a substance such as a foreign protein or drug.
anapophysis
anapophysis
noun
(anatomy) An accessory process in many lumbar vertebrae.
anarchistic
anarchistic
adj
Anarchic; chaotic or free-spirited.
Of or relating to anarchism or anarchy.
anarthrosis
anaschistic
anastrophia
anathematic
anathematic
adj
Having the characteristic of anathema.
anchisaurus
anchoretish
anchoretism
anchoretism
noun
The practice or mode of life of an anchorite.
anchoritess
anchoritess
noun
A female anchorite; an anchoress.
anchoritish
anchoritism
anchorville
anchtherium
anchylosing
anchylosing
verb
present participle of anchylose
andikithira
androphobia
androphobia
noun
Fear of or aversion to men.
androsphinx
androsphinx
noun
A sphinx with the head of a man.
anemochoric
anemochoric
adj
anemochorous
anepithymia
anerethisia
anesthesias
anesthesias
noun
plural of anesthesia
anesthetics
anesthetics
noun
plural of anesthetic
anesthetist
anesthetist
noun
(American spelling, Canadian spelling, medicine) One who gives an anesthetic.
anesthetize
anesthetize
verb
(transitive) To administer anesthesia to: to render unfeeling or unconscious through the use of narcotic substances, usually either alcohol or pharmaceutical drugs.
angelfishes
angelfishes
noun
plural of angelfish
angiography
angiography
noun
(medicine) A medical imaging technique in which an X-ray image is taken to visualize the inside of blood vessels and organs of the body, with particular interest in the arteries, veins and the heart chambers.
angletwitch
angletwitch
noun
(rare, dialectal) An angleworm; earthworm.
anglophiles
anglophiles
noun
plural of anglophile
anglophilia
anglophilia
noun
Alternative letter-case form of Anglophilia
anglophilic
anglophilic
adj
Alternative letter-case form of Anglophilic
anglophobia
anglophobia
noun
Alternative letter-case form of Anglophobia
anglophobic
anglophobic
Adjective
Having an aversion to England or the English.
anguimorpha
anhematosis
anhemitonic
anhemitonic
adj
Relating to the absence of half steps.
anhemolytic
anhydraemia
anhydraemic
anhydrating
anhydration
anhydration
noun
(chemistry) The formation of an anhydrate
anhydridize
anhydroxime
animotheism
anisalcohol
anisanthous
anisophylly
anisophylly
noun
(botany) The growing by a plant of leaves in pairs with a significant difference in size between the two.
annihilable
annihilable
adj
Able to be destroyed completely; capable of being annihilated.
annihilated
annihilated
adj
Having been utterly destroyed.
verb
simple past tense and past participle of annihilate
annihilates
annihilates
verb
Third-person singular simple present indicative form of annihilate