(organic chemistry) The aromatic ketone phenyl methyl ketone, used in the manufacture of very many organic compounds
acetothienone
acetothienone
noun
(organic chemistry) The ketone 1-thiophen-2-ylethanone
acetphenetid
acetphenetidin
acetylcholine
acetylcholine
noun
(biochemistry) A neurotransmitter in humans and other animals. It is an ester of acetic acid and choline with chemical formula CH₃COOCH₂CH₂N⁺(CH₃)₃.
acetylcholinesterase
acetylcholinesterase
noun
(biochemistry) An enzyme that catalyzes the hydrolysis of the neurotransmitter acetylcholine into choline and acetic acid.
acetylcholinic
acetylcholinic
adj
(biochemistry) Of or relating to acetylcholine.
acetylhydrazine
acetylhydrazine
noun
(organic chemistry) The acylhydrazine of acetic acid CH₃CO-NH-NH₂
acetylmethylcarbinol
acetylmethylcarbinol
noun
(organic chemistry) acetoin
acetylphenol
acetylphenylhydrazine
achaean
achaemenes
achaemenian
achaemenid
achaemenidae
achaemenides
achaemenidian
achaemenids
achaenocarp
achaenocarp
noun
Any dry indehiscent fruit.
achaenodon
achaian
achan
achango
acharne
acharnement
acharnement
noun
(obsolete) Savage fierceness; ferocity.
acharnians
achatina
achatinella
achatinella
noun
Oahu tree snail (Achatinella spp.).
achatinidae
achen
achene
achene
noun
(botany) A small, dry, indehiscent fruit, containing a single seed, as in the buttercup.
achenes
achenes
noun
plural of achene
achenia
achenia
noun
plural of achenium
achenial
achenial
adj
Pertaining to an achene.
achenium
achenium
noun
(botany) achene
achenocarp
achenodia
achenodium
acherman
achernar
acheron
acheronian
acheronian
Adjective
Of or pertaining to Acheron.
acherontic
acherontic
adj
Alternative form of Acherontic
acherontical
acheson
achesoun
acheulean
acheulean
Adjective
Of or pertaining to a lower Paleolithic period characterized by the presence of flaked bifacial hand axes.
Noun
A lower Paleolithic period characterized by the presence of flaked bifacial hand axes.
acheulian
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.
achievements
achievements
noun
plural of achievement
achieving
achieving
noun
Achievements, emphasizing the process of accomplishing them.
verb
present participle of achieve
achigan
achillean
achillean
Adjective
Resembling or relating to Achilles, the hero of the Iliad.
Invincible with only one small weakness (an Achilles heel), which becomes one's downfall.
Guided by emotional motives, especially rage, rather than reason.
Of or relating to a Roman-era Greek writer.
Pertaining to the Achilles tendon.
Of or relating to male homosexuals or male homosexuality, in the style of Achilles' relationship with Patroclus.
achillein
achilleine
achilleine
noun
(organic chemistry) An alkaloid (C₂₀H₃₈N₂O₁₅) found in plants of the genus Achillea.
achillodynia
achillodynia
noun
(pathology) pain due to achillobursitis
achimenes
achimenes
noun
A Central American plant, of the genus Achimenes, having showy, trumpet-shaped flowers
achinese
achiness
achiness
noun
The property of being achy.
achinesses
aching
aching
adj
That aches; continuously painful; that causes pain.
noun
The feeling of an ache; a dull pain.
verb
present participle of ache
achingly
achingly
adv
In an aching manner; sorely.
achkan
achkan
noun
A man's knee-length jacket worn in parts of India, Bangladesh, and Pakistan.
achondrite
achondrite
noun
(astronomy, geology) Any stony meteorite that contains no chondrules
achondrites
achondrites
noun
plural of achondrite
achondritic
achondritic
adj
(geology) Of or pertaining to achondrites, a type of stony meteorite.
achondroplasia
achondroplasia
noun
(teratology) A genetic disorder, the most common form of short limb dwarfism.
achondroplastic
achondroplastic
adj
(teratology) Of, related to, or suffering from achondroplasia.
achorion
achorn
achorn
noun
(Chester) An acorn.
achroanthes
achrodextrin
achrodextrin
noun
(biochemistry, cytology) A form of dextrin that is not colourable by iodine
achrodextrinase
achroglobin
achromatin
achromatin
noun
(biology) Tissue that is not stained by fluid dyes.
achromatinic
achromatinic
adj
(cytology, of a cell nucleus) Lacking the ability to be coloured by a stain.
achromatisation
achromatising
achromatising
verb
present participle of achromatise
achromatization
achromatization
noun
The act or process of achromatizing.
achromatizing
achromatizing
verb
present participle of achromatize
achromycin
achronical
achronical
adj
(astronomy) Alternative form of achronic
achronism
achronychous
achroodextrin
achroodextrin
noun
Alternative form of achrodextrin
achroodextrinase
achyranthes
achyranthes
noun
plural of achyranthe
acidanthera
acidanthera
noun
Any of the gladioli previously placed in the genus Acidanthera.
acocanthera
acocantherin
acocantherin
noun
Alternative form of acokantherin
acoenaesthesia
acolhuan
acouophonia
acquaintanceship
acquaintanceship
noun
(countable) A relationship as acquaintances.
(uncountable) The state of being acquainted.
acquaintanceships
acquaintanceships
noun
plural of acquaintanceship
acquophonia
acroanesthesia
acroanesthesia
noun
Alternative form of acroanaesthesia
acrochordinae
acrochordon
acrochordon
noun
(medicine) A soft, pedunculated or pensile wart, consisting of myomatous or edematous fibrous tissue, often found on the neck or eyelids of elderly persons.
acrocorinth
acrolithan
acrolithan
Adjective
Relating to, or like, an acrolith.
acronichal
acronichally
acronych
acronychal
acronychal
adj
Alternative form of acronical
acronychally
acronychous
acrophonetic
acrophonetic
adj
Of or pertaining to acrophony.
acrophonic
acrophonic
adj
Conforming to acrophony.
acrophonically
acrophonically
adv
In an acrophonic way.
acrophonies
acrophonies
noun
plural of acrophony
acrophony
acrophony
noun
The naming of letters in an alphabetic writing system using words whose initial sounds are represented by the respective letters.
acrotrophoneurosis
actinautographic
actinautographic
adj
(obsolete, photography) That produces a developable impression on light-sensitive material without contact
actinautography
actinautography
noun
(obsolete, photography) The production of an actinautographic image
actinenchyma
actiniochrome
actiniochrome
noun
A red to violet pigment present in some Actinozoa
actiniohematin
actiniohematin
noun
A pigment (mixture of cytochromes) present in the sea anemone Actinia equina
actiniomorpha
actinobranch
actinobranch
noun
(biology) An organ, in some anthozoans, that functions as a gill
actinobranchia
actinobranchia
noun
Alternative form of actinobranch
actinochemical
actinochemical
adj
Relating to actinochemistry.
actinochemistry
actinochemistry
noun
The science of chemistry and actinism.
actinograph
actinograph
noun
A recording actinometer.
actinographic
actinography
actinography
noun
measurement with an actinograph
actinomorphic
actinomorphic
adj
(botany, of a flower) Having its petals arranged in a radially symmetric fashion.
actinomorphous
actinomorphous
adj
(botany, of a flower) Having petals arranged in a radially symmetric pattern.
actinomorphy
actinomorphy
noun
The condition of being actinomorphic.
actinophone
actinophone
noun
An apparatus for the production of sound by the action of the actinic, or ultraviolet, rays.
actinophonic
actinophonic
adj
Relating to the production of sound by means of the actinic, or ultraviolet, rays.
actinophore
actinophore
noun
(biology) A cartilaginous spine that supports the fin rays of fish
actinophorous
actinophorous
adj
(biology) Having straight projecting spines
actinophryan
actinophrys
actinosphaerium
actinotherapeutic
actinotherapeutic
adj
Relating to actinotherapy.
actinotherapeutics
actinotherapeutics
noun
actinotherapy
actinotherapy
actinotherapy
noun
(medicine) The treatment of disease, especially skin disease, by exposure to ultraviolet light; radiotherapy.
actinotrichium
actinotrichium
noun
(zoology) Any of a group of hairlike fibres in the finfolds of fish larvae that develop into fin rays
actinotrocha
actinotrocha
noun
The larva of a phoronid.
acushnet
acyloxymethane
adaminah
addleheadedness
addleheadedness
noun
The quality of being addleheaded.
adelphian
adenanthera
adenasthenia
adenemphractic
adenemphraxis
adenoacanthoma
adenoacanthoma
noun
(pathology) An adenocarcinoma characterised by the presence of squamous cells
adenochondroma
adenochondroma
noun
(pathology) A hamartoma consisting of glandular and cartilaginous tissue