(biochemistry) An enzyme that catalyses the oxidation of acetaldehyde to acetic acid
acetaldehyde
acetaldehyde
noun
(organic chemistry) An organic compound, (CH₃CHO). Sometimes called ethanal or acetic aldehyde. See aldehyde.
acetaldehydrase
acetaminophen
acetaminophen
noun
(Canada, US) A white crystalline compound used in medicine as an anodyne to relieve pain and reduce fever.
acethydrazide
acethydrazide
noun
(organic chemistry) The hydrazide of acetic acid CH₃-CO-NH-NH₂
acetmethylanilide
acetnaphthalide
acetoamidophenol
acetochloral
acetomorphin
acetomorphine
acetomorphine
noun
heroin
acetonaphthone
acetonaphthone
noun
(organic chemistry) Either of two isomers of methyl naphthyl ketone
acetophenetide
acetophenetide
noun
(organic chemistry) The N-acetyl derivative of a phenetidine
acetophenetidin
acetophenetidin
noun
phenacetin
acetophenetidine
acetophenin
acetophenine
acetophenone
acetophenone
noun
(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
acetoxyphthalide
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
acetylthymol
ach
ach
intj
Alternative form of och
An expression of annoyance.
noun
(obsolete) Any of several species of plants, such as smallage, wild celery, parsley.
achab
achad
achaea
achaean
achaemenes
achaemenian
achaemenid
achaemenidae
achaemenides
achaemenidian
achaemenids
achaenocarp
achaenocarp
noun
Any dry indehiscent fruit.
achaenodon
achaeta
achaetous
achaetous
adj
(zoology) Without setae
achaeus
achafe
achage
achage
noun
(rare) The state or condition of having aches.
achagua
achaia
achaian
achakzai
achalasia
achalasia
noun
(medicine, pathology) A neuromuscular condition where a ring of muscles is unable to relax fully; usually with reference to gastrointestinal smooth muscles or to esophageal achalasia when not otherwise specified.
achamoth
achan
achango
achape
achaque
achar
achar
noun
A spicy and salty pickle in Indian cuisine.
achariaceae
achariaceous
acharne
acharnement
acharnement
noun
(obsolete) Savage fierceness; ferocity.
acharnians
acharya
acharya
noun
(historical, rare) a scholar, practitioner, professional, specialist, disciplinarian imparting knowledge.
(historical, rare) an individual who practices or is knowledgeable on any of the prevalent disciplines of customs, learning, rituals, arts, traditions, schools etc., especially one imparting them into pupils.
achate
achate
noun
(obsolete) An agate.
achates
achates
noun
plural of achate
achatina
achatinella
achatinella
noun
Oahu tree snail (Achatinella spp.).
achatinidae
achatour
achatour
noun
(historical) A purveyor of provisions; a provedore. [14th–18th c.]
achaz
achaz
Proper noun
definition
ache
ache
noun
(obsolete) parsley
Continued dull pain, as distinguished from sudden twinges, or spasmodic pain.
Rare spelling of aitch.
verb
(intransitive) To suffer pain; to be the source of, or be in, pain, especially continued dull pain; to be distressed.
(transitive, literary, rare) To cause someone or something to suffer pain.
acheat
achech
acheck
ached
ached
verb
simple past tense and past participle of ache
acheer
acheft
acheilary
acheilia
acheilia
noun
(pathology) A congenital absence of lips, liplessness
acheilous
acheilous
adj
(obsolete, pathology) lipless
acheiria
acheiria
noun
A loss of sense in one or both hands, or the inability to tell on which side of the body a stimulus has been applied
The congenital absence of one or both hands
acheirous
acheirous
adj
Of or pertaining to acheiria (lacking one or both hands)
acheirus
achelous
achelous
Proper noun
a river in western Greece
Deity of water; later, patron deity of the Achelous River.
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
acher
acher
noun
(obsolete) usher
acherman
achernar
acheron
acheronian
acheronian
Adjective
Of or pertaining to Acheron.
acherontic
acherontic
adj
Alternative form of Acherontic
acherontical
aches
aches
noun
plural of ache
verb
Third-person singular simple present indicative form of ache
acheson
achesoun
achete
achetidae
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
acheweed
achier
achier
adj
comparative form of achy: more achy
achiest
achiest
adj
superlative form of achy: most achy
achievability
achievability
noun
The state or condition of being achievable.
achievable
achievable
adj
Capable of being achieved, which either means possible or probable.
Not linked to fate or outside influences.
achieve
achieve
verb
(intransitive) To succeed in something, now especially in academic performance.
(obsolete, intransitive) To conclude, to turn out.
(obsolete, transitive) To conclude, finish, especially successfully.
(transitive) To carry out successfully; to accomplish.
(transitive) To obtain, or gain (a desired result, objective etc.), as the result of exertion; to succeed in gaining; to win.
(transitive, now literary) To obtain (a material thing).
Show all the spoils by valiant kings achieved.
achieved
achieved
adj
(of a goal or status) Having been reached, attained or accomplished.
verb
simple past tense and past participle of achieve
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
achiever
achiever
noun
One who achieves something.
One who tends to succeed; a winner.
achievers
achievers
noun
plural of achiever
achieves
achieves
verb
Third-person singular simple present indicative form of achieve
achieving
achieving
noun
Achievements, emphasizing the process of accomplishing them.
verb
present participle of achieve
achigan
achilary
achill
achill
adj
chilled; chilly
achille
achillea
achillea
noun
Any of various plants of the genus Achillea
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.
achilleas
achilleas
noun
plural of achillea
achilleid
achillein
achilleine
achilleine
noun
(organic chemistry) An alkaloid (C₂₀H₃₈N₂O₁₅) found in plants of the genus Achillea.
achilles
achilles
Proper noun
semi-divine hero, son of Peleus and the nymph Thetis, prince and leader of the Myrmidons; great warrior of the Achaean (Greek) camp, killed in the Trojan War; central character of the Iliad.
achillize
achillobursitis
achillobursitis
noun
(pathology) inflammation of a bursa near the Achilles tendon
achillodynia
achillodynia
noun
(pathology) pain due to achillobursitis
achilous
achilous
adj
(botany, anatomy) without a lip.
achimaas
achime
achime
adj
chiming
achimelech
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.
achiote
achiote
noun
A tropical American evergreen shrub, Bixa orellana; the lipstick tree.
An orange-red dye obtained from this seed.
The seed of this tree used as a colouring or in Latin American cooking.
achiotes
achiotes
noun
plural of achiote
achira
achira
noun
Canna indica (syn. Canna edulis), similar to arrowroot: the canna lily, the seeds of which yield a purple dye.
The edible rhizome of this plant.
achirite
achirite
noun
dioptase
achish
achitophel
achkan
achkan
noun
A man's knee-length jacket worn in parts of India, Bangladesh, and Pakistan.