Copy of `Princeton University - WordNet - a lexical database for the English language`

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Princeton University - WordNet - a lexical database for the English language Category: General Date & country: 27/01/2008, USA Words: 85192

acetate rayon
acetate noun a fabric made from fibers of cellulose acetate

acetic
adjective relating to or containing acetic acid

acetic acid
ethanoic acid noun a colorless pungent liquid widely used in manufacturing plastics and pharmaceuticals

acetic anhydride
noun a compound that is needed in order to refine opium into heroin

acetin
noun any of three liquid acetates that are formed when acetic acid and glycerin are heated together

acetoacetic acid
noun unstable acid found in abnormal amounts in the blood and urine in some cases of impaired metabolism (as diabetes mellitus or starvation)

acetone
propanone noun the simplest ketone; a highly inflammable liquid widely used as an organic solvent and as material for making plastics

acetonic
adjective of or relating to acetone

acetophenetidin
acetphenetidin noun a white crystalline compound used as an analgesic and also as an antipyretic

acetose
acetous adjective tasting or smelling like vinegar

acetum
noun a dilute solution of acetic acid that is used as a solvent (e.g. for a drug)

acetyl
acetyl group noun the organic group of acetic acid (CH3CO-)

acetyl chloride
ethanoyl chloride noun colorless liquid acyl chloride (CH3COCl) that has a pungent odor

acetylate
acetylize verb receive substitution of an acetyl group; `the compounds acetylated`

acetylation
noun the process of introducing an acetyl group into a compound; `the acetylation of cyclooxygenase-2 by aspirin`

acetylcholine
noun a neurotransmitter that is a derivative of choline; released at the ends of nerve fibers in the somatic and parasympathetic nervous systems

acetylene
ethyne noun a colorless flammable gas used chiefly in welding and in organic synthesis

acetylenic
adjective of or related to acetylene

acetylic
adjective of or related to acetic acid

Achaean
Achaian noun a member of one of the four divisions of the prehistoric Greeks

ache
aching noun a dull persistent (usually moderately intense) pain

ache
pine verb have a desire for something or someone who is not present; `She ached for a cigarette`; `I am pining for my lover`

achene
noun small dry indehiscent fruit with the seed distinct from the fruit wall

achenial
adjective pertaining to dry one-seeded indehiscent fruit

Acheron
River Acheron noun (Greek mythology) a river in Hades across which the souls of the dead were carried by Charon

Acheronian
Acherontic adjective dark and dismal as of the rivers Acheron and Styx in Hades; `in the depths of an Acheronian forest`; `upon those roseate lips a Stygian hue`-Wordsworth

Acherontia
genus Acherontia noun death`s-head moth

Acheson
Dean Acheson noun United States statesman who promoted the Marshall Plan and helped establish NATO (1893-1971)

Acheson process
noun an industrial process for making graphite by heating a mixture of coke and clay

Acheta
genus Acheta noun common house and field crickets

achievability
attainability noun the state of being achievable

achieve
accomplish verb to gain with effort; `she achieved her goal despite setbacks`

achiever
winner 2 success noun a person with a record of successes; `his son would never be the achiever that his father was`; `only winners need apply`; `if you want to be a success you have to dress like a success`

achillea
noun any of several plants of the genus Achillea native to Europe and having small white flowers in flat-topped flower heads

Achilles
noun a mythical Greek hero of the Iliad; a foremost Greek warrior at the siege of Troy; when he was a baby his mother tried to make him immortal by bathing him in a magical river but the heel by which she held him remained vulnerable--his `Achilles` heel`

Achilles tendon
tendon of Achilles noun a large tendon that runs from the heel to the calf

Achilles` heel
noun a seemingly small but actual mortal weakness

achimenes
hot water plant noun any plant of the genus Achimenes having showy bell-shaped flowers that resemble gloxinias

aching
achy adjective causing a dull and steady pain; `my aching head`; `her old achy joints`

achira
indian shot noun canna grown especially for its edible rootstock from which arrowroot starch is obtained

achlamydeous
adjective not having a floral envelope or perianth

achlorhydria
noun an abnormal deficiency or absence of free hydrochloric acid in the gastric juice; often associated with severe anemias and cancer of the stomach

achlorhydric
adjective lacking hydrochloric acid

Achoerodus
genus Achoerodus noun a genus of Labridae

acholia
cholestasis noun a condition in which little or no bile is secreted or the flow of bile into the digestive tract is obstructed

Achomawi
noun the Shastan language spoken by the Achomawi

achondrite
noun a stony meteor lacking chondrules

achondritic
adjective not having a granular structure

achondroplasia
achondroplasty noun an inherited skeletal disorder beginning before birth; cartilage is converted to bone resulting in dwarfism

achondroplastic
adjective of or relating to achondroplasia

Achras
genus Achras noun tropical trees having papery leaves and large fruit

achromatic
adjective having no hue

achromatic color
achromatic colour noun a color lacking hue; white or grey or black

achromatic lens
noun a compound lens system that forms an image free from chromatic aberration

achromatic vision
noun vision using the rods

achromatin
noun the part of a cell nucleus that is relatively uncolored by stains or dyes

achromatinic
adjective (of substance of a cell nucleus) not readily colored by stains

achromatize
achromatise verb remove color from; `achromatize the lenses`

achromatous
adjective having little or inadequate color

achromia
noun an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells

achromic
achromous adjective having no color

achylia
achylia gastrica noun absence of gastric juices (partial or complete)

acicula
noun a needlelike part or structure of a plant or animal or crystal; as a spine or bristle or crystal

aciculate
adjective related to plants or animals or crystals having aciculae or needlelike parts

acid
adjective having the characteristics of an acid; `an acid reaction`

acid dye
noun dye in which the chromophore is part of a negative ion

acid head
noun someone who takes LSD

acid rain
acid precipitation noun rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water

acid test
noun a rigorous or crucial appraisal

acid value
noun (chemistry) the amount of free acid present in fat as measured by the milligrams of potassium hydroxide needed to neutralize it; `as the glycerides in fat slowly decompose the acid value increases`

acid-base equilibrium
acid-base balance noun (physiology) the normal equilibrium between acids and alkalis in the body; `with a normal acid-base balance in the body the blood is slightly alkaline`

acid-base indicator
noun an indicator that changes color on going from acidic to basic solutions

acid-fast
adjective not easily decolorized by acid solutions; pertains to micro-organisms (especially the tubercle bacillus that causes tuberculosis)

acid-forming
adjective yielding an acid in aqueous solution

acid-loving
adjective thriving in a relatively acidic environment (especially of plants requiring a pH well below 7)

acid-tasting
sour-tasting adjective having a sour acidic taste

acid-wash
verb wash with acid so as to achieve a bleached look; `acid-wash blue jeans`

acidemia
noun a blood disorder characterized by an increased concentration of hydrogen ions in the blood (which falls below 7 on the pH scale)

acidic
acid adjective being sour to the taste

acidic hydrogen
acid hydrogen noun a hydrogen atom in an acid that forms a positive ion when the acid dissociates

acidification
noun the process of becoming acid or being converted into an acid

acidify
acetify verb turn acidic; `the solution acetified`

acidimetric
adjective involving or related to acidimetry

acidimetry
noun volumetric analysis using standard solutions of acids to measure the amount of a base present

acidity
acidulousness noun the taste experience when something acidic is taken into the mouth

acidophil
acidophile noun an organism that thrives in a relatively acid environment

acidophilic
acidophilous adjective especially of some bacteria; growing well in an acid medium

acidophilus milk
noun milk fermented by bacteria; used to treat gastrointestinal disorders

acidosis
noun abnormally high acidity (excess hydrogen-ion concentration) of the blood and other body tissues

acidotic
adjective having or being characterized by acidosis

acinar
adjective pertaining to the individual parts making up an aggregate fruit like a blackberry

acinar
acinose adjective pertaining to one of the small sacs (as in a compound gland)

Acinonyx
genus Acinonyx noun cheetahs

Acinos
genus Acinos noun plants closely allied to the genera Satureja and Calamintha

acinous
acinose adjective pertaining to one of the small sacs (as in a compound gland)

acinus
noun one of the small sacs or saclike dilations in a compound gland

Acipenser
genus Acipenser noun type genus of the Acipenseridae: sturgeons

Acipenseridae
family Acipenseridae noun sturgeons

ackee
akee noun red pear-shaped tropical fruit with poisonous seeds; flesh is poisonous when unripe or overripe

acknowledge
recognise verb express obligation, thanks, or gratitude for; `We must acknowledge the kindness she showed towards us`