| ACRASIA | • acrasia n. Lack of self-control; excess; intemperance. • ACRASIA n. (Greek) a loss of self control. |
| ACRASIN | • acrasin n. A chemotactic agent produced by some slime moulds. • ACRASIN n. a substance secreted by a slime mould. |
| ACRATIC | • acratic adj. Alternative form of akratic. • ACRATIC adj. pertaining to acrasia or lack of self-control. |
| ACREAGE | • acreage n. Size, as measured in acres. • acreage n. An area of land measured in acres. • ACREAGE n. area in acres. |
| ACRIDER | • acrider adj. Comparative form of acrid: more acrid. • ACRID adj. sharp to the taste or smell. |
| ACRIDIN | • acridin n. Dated form of acridine. • ACRIDIN n. a chemical compound found in coal-tar, also ACRIDINE. |
| ACRIDLY | • acridly adv. In a harsh or corrosive manner. • ACRID adv. sharp to the taste or smell. |
| ACROBAT | • acrobat n. An athlete who performs acts requiring skill, agility and coordination, often as part of a circus performance. • acrobat v. To practise acrobatics. • acrobat v. (Figurative) To move like an acrobat (With agility, balance, long leaps, etc.). |
| ACROGEN | • acrogen n. (Biology) any flowerless plant whose growth takes place at the tip of the main stem, especially the cryptogam ferns. • ACROGEN n. a cryptogam with a distinct permanent stem; a fern, a moss. |
| ACROMIA | • acromia n. Plural of acromion. • ACROMION n. (Greek) the outer extremity of the shoulder blade. |
| ACRONIC | • acronic adj. Synonym of acronycal. • ACRONIC adj. occurring at nightfall or sunset (esp. of the rising or setting of stars), also ACRONICAL, ACRONYCAL, ACRONYCHAL. |
| ACRONYM | • acronym n. (Linguistics) An abbreviation formed by the initial letters of other words, sometimes exclusively such… • acronym n. (Linguistics) An abbreviation formed by the beginning letters or syllables of other words (as "Benelux"). • acronym v. To form into an acronym. |
| ACROTER | • acroter n. (Architecture) An acroterium. • ACROTER n. a pedestal or ornament at the angle of a pediment, also ACROTERION, ACROTERIUM. |
| ACROTIC | • acrotic adj. (Medicine) Pertaining to or affecting the surface. • ACROTIC adj. in medicine, relating to the surface. |
| ACRYLIC | • acrylic adj. (Organic chemistry) Derived from acrylic acid or acrylonitrile. • acrylic adj. Containing an acrylic resin. • acrylic n. (Organic chemistry) An acrylic resin. |
| ACRYLYL | • acrylyl n. (Organic chemistry) The univalent radical CH2=CHCO− derived from acrylic acid. • ACRYLYL n. an organic radical. |