(botany) That develops, matures or opens from the base towards the apex in sequence.
acrospire
acrospire
noun
(botany) The sprout at the end of a seed when it begins to germinate.
verb
To put forth the first sprout.
acrospore
acrospore
noun
A spore borne at the extremity of the cells of fructification in fungi.
adipocere
adipocere
noun
A brown, fatty, waxy substance (fatty acids) that forms on dead animal tissues in response to hydrolysis
adoperate
aepyceros
aepyornis
aerograph
aerograph
noun
A kind of airbrush.
aeropathy
aeropathy
noun
illness caused by a change in atmospheric pressure
aeropause
aeropause
noun
The region of the atmosphere above which it is not possible for aircraft to fly
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
aeroplane
aeroplane
noun
(aeronautics, archaic) An airfoil.
A powered heavier-than-air aircraft with fixed wings.
Any of various nymphalid butterflies, of various genera, having a slow gliding flight. Also called planes.
verb
(intransitive) To fly in an aeroplane.
(transitive) To transport by aeroplane.
aeropulse
aeropulse
noun
pulsejet
aeroscope
aeroscope
noun
A device used to collect dust particles, spores etc from the air for subsequent analysis.
A type of compressed air camera for making films, constructed by Polish inventor Kazimierz Prószyński in 1909
aeroscopy
aeroscopy
noun
(obsolete, meteorology) The branch of meteorology that involves the scientific examination of the various properties and composition of the atmosphere, and their variation
(rare) divination by observation of the sky
(zoology) aeroscepsy
aerospace
aerospace
adj
Of, or relating to the Earth's atmosphere and nearby space.
Of, or relating to the science, technology and industry associated with aircraft, missiles, satellites and spacecraft.
noun
The atmosphere of the Earth and the region of space around it.
The industry concerned with aircraft, missiles, satellites and spacecraft.
aftercrop
aftercrop
noun
A second crop in the same year.
afterhope
agriotype
agriotype
noun
An ancestral wild form of a domestic animal or plant.
agrypnode
agueproof
agueproof
adj
Resistant to the ague.
alephzero
allenport
allophore
allotrope
allotrope
noun
(chemistry) Any form of an element that has a distinctly different molecular structure to another form of the same element.
(linguistics) An other form, a different shape of a lexical unit.
(philosophy) An alternative shape of a cognitive structure.
alpenhorn
alpenhorn
noun
Alternative spelling of alphorn
ambrotype
ambrotype
noun
(photography, historical) An early type of photograph in which a glass negative appears positive when displayed on a black background.
ametropia
ametropia
noun
(medicine) Any of several disorders of the eye (spherical or cylindrical) resulting from faulty refractive ability.
ametropic
ametropic
adj
(ophthalmology) Relating to or suffering from ametropia
anteporch
antitrope
apeldoorn
aperiodic
aperiodic
adj
(mathematics, stochastic processes, of a state) for which any return to it may occur at irregular times; not periodic.
(physics) That does not have a periodic vibration
That does not recur periodically
aphidozer
aphidozer
noun
A device like a hopperdozer for the removal of aphids.
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
aphorized
aphorized
verb
simple past tense and past participle of aphorize
aphorizer
aphorizer
noun
Alternative form of aphoriser
aphorizes
aphorizes
verb
Third-person singular simple present indicative form of aphorize
aphrodite
aphrodite
noun
(mineralogy) A soft and earthy mineral of a white or yellowish color, and with a waxy lustre, found at Langbanshytta in Sweden. It is a hydrated silicate of magnesia, and resembles meerschaum.
aphrolite
apocenter
apocenter
noun
(astronomy) The furthest point of an astronomical object in an elliptical orbit to its center of attraction (the principal focus of the ellipse)
apocentre
apocentre
noun
Alternative form of apocenter
apocrenic
aporphine
aporphine
noun
(organic chemistry) One of a class of quinoline alkaloids from which apomorphine can be derived.
aporrhoea
aportoise
appellors
appledorf
appleroot
appointer
appointer
noun
A person who appoints (in any sense).
appressor
approbate
approbate
adj
Approved.
verb
(transitive) To give official sanction, consent or authorization to.
approvers
approvers
noun
plural of approver
apronless
apronless
adj
Without an apron.
apronlike
apronlike
adj
Resembling an apron.
aprosexia
aprosexia
noun
(psychology) Inability to concentrate.
apyrotype
arapahoes
areopagus
areopagus
Noun
The supreme judicial and legislative council of ancient Athens
arpeggios
arpeggios
verb
Third-person singular simple present indicative form of arpeggio
arreption
arreption
noun
(obsolete) The act of taking away.
ascophore
ascospore
ascospore
noun
(biology) A sexually produced spore from the ascus of an Ascomycetes fungus
aspermont
aspermous
aspermous
adj
(botany) Lacking seeds.
aspersion
aspersion
noun
(in the plural) slander, calumny
(obsolete) A sprinkling, especially of holy water.
An attack on somebody's reputation or good name, often in the phrase to cast aspersions upon….
aspersoir
aspersoir
noun
aspergillum
aspersors
aspersors
noun
plural of aspersor
aspersory
aspersory
adj
aspersive
noun
Synonym of aspersorium
astrophel
astrophel
Noun
A lover similar to that in the poem
atemporal
atemporal
adj
Unaffected by time; timeless; permanent or unchanging.
atriopore
atriopore
noun
a hole in a lancelet through which water exits the body
atrophied
atrophied
adj
Characterized by atrophy.
verb
simple past tense and past participle of atrophy
atrophies
atrophies
noun
plural of atrophy
atropidae
atropines
atropines
noun
plural of atropine
attercrop
attercrop
noun
Alternative form of attercop (“a spider”)
auriphone
auriscope
auriscope
noun
An instrument for examining the condition of the ear.
aurophore
autospore
autospore
noun
An immobile spore that cannot develop flagella.
auxospore
auxospore
noun
(biology) A reproductive spore in diatoms that is formed by the union of two cells
azeotrope
azeotrope
noun
(physics) A mixture of two or more substances whose liquid and gaseous forms have the same composition (at a certain pressure); the substances cannot be separated by normal distillation.
verb
To create a mixture of this kind.
azeotropy
azeotropy
noun
(physics, chemistry) The formation of an azeotrope; the condition of being azeotropic
backropes
bargepole
bargepole
noun
Alternative spelling of barge pole
barhopped
barhopped
verb
simple past tense and past participle of barhop
baroscope
baroscope
noun
barometer
beaproned
beboppers
beboppers
noun
plural of bebopper
becrampon
beworship
biosphere
biosphere
noun
The part of the Earth and its atmosphere capable of supporting life.
The totality of living organisms and their environment.
bloodripe
boarspear
boltropes
boltropes
noun
plural of boltrope
bonaparte
bonaparte
Proper noun
A Corsican surname
Napoleon Bonaparte (1769-1821)
The family of Napoleon Bonaparte
A former name for the island of Réunion
bookpress
bopyridae
boxkeeper
boxkeeper
noun
(now historical) A theatre attendant in charge of the boxes.
bradypode
breesport
bridelope
bridgepot
bromopnea
bromopnea
noun
(medicine, dated) The condition of having bad breath.
broomrape
broomrape
noun
Any of various plants, of the genus Orobanche, that are parasitic on the roots of other plants.
browpiece
bryophyte
bryophyte
noun
(botany) Any plant of the division Bryophyta, defined sensu lato to comprise the mosses, liverworts and hornworts and corresponding to all embryophytes that are not vascular plants.
bupleurol
bupleurol
noun
(organic chemistry) An alcohol with chemical formula C₁₀H₂₀O, derived from the essential oil from the flowers and leaves of Bupleurum fruticosum.
campanero
campanero
noun
The bellbird of South America.
camporees
camporees
noun
plural of camporee
canephora
canephora
noun
(architecture) A caryatid supporting a basket on her head.
canephore
canephore
noun
Alternative form of canephora
canephori
canephors
canephors
noun
plural of canephor
canephroi
capeadors
capeadors
noun
plural of capeador
capersome
capersome
adj
Full of capers; frolicsome.
caperwort
caperwort
noun
Any plant of the family Capparaceae
capeworks
caponiere
caponiere
noun
(military, historical) A work made across or in the ditch, to protect it from the enemy, or to serve as a covered passageway.
caponiers
caponiers
noun
plural of caponier
caponiser
caponizer
caponizer
noun
A person or device that caponizes
caporetto
capreolar
capreolus
caprifole
caprifole
noun
(obsolete) The woodbine or honeysuckle.
caprioled
caprioled
verb
simple past tense and past participle of capriole
caprioles
caprioles
noun
plural of capriole
verb
Third-person singular simple present indicative form of capriole
caprylone
capsomere
capsomere
noun
Any of the individual protein subunits of a viral capsid
capsomers
capsomers
noun
plural of capsomer
carpiodes
carpocace
carpogone
carpoidea
carpolite
carpolite
noun
(dated) A fossil fruit, nut, or seed.
cartopper
cartopper
noun
A boat designed to be attached to the top of an automobile for transportation.