| ALTARPIECES | • altarpieces n. Plural of altarpiece. • ALTARPIECE n. a work of art that decorates the space above and behind an altar. |
| ALTAZIMUTHS | • altazimuths n. Plural of altazimuth. • alt-azimuths n. Plural of alt-azimuth. • ALTAZIMUTH n. an instrument for measuring the altitude and azimuth of heavenly bodies. |
| ALTERATIONS | • alterations n. Plural of alteration. • ALTERATION n. the act of altering. |
| ALTERATIVES | • alteratives n. Plural of alterative. • ALTERATIVE n. a medicine or treatment that changes bodily functions. |
| ALTERCATING | • altercating v. Present participle of altercate. • ALTERCATE v. to dispute, argue. |
| ALTERCATION | • altercation n. Heated or angry dispute. • ALTERCATION n. a disagreement. |
| ALTERCATIVE | • altercative adj. (Rare) Characterized by wrangling; scolding. • ALTERCATIVE adj. relating to altercation. |
| ALTERNANCES | • alternances n. Plural of alternance. • ALTERNANCE n. alternation, change or variation; training by alternate periods of theoretical and practical work. |
| ALTERNATELY | • alternately adv. In reciprocal succession; succeeding by turns; in alternate order. • alternately adv. (Mathematics) By alternation; when, in a proportion, the antecedent term is compared with antecedent, and consequent. • alternately adv. (Chiefly North America, sometimes proscribed) Alternatively. |
| ALTERNATING | • alternating v. Present participle of alternate. • alternating adj. That alternates. • alternating adj. (Mathematics, of a knot) Having a planar diagram whose crossings alternate between "over" and "under"… |
| ALTERNATION | • alternation n. The reciprocal succession of (normally two) things in time or place; the act of following and being… • alternation n. (Religion) The response of the congregation speaking alternately with the minister. • alternation n. (Phonology) Ablaut. |
| ALTERNATIVE | • alternative adj. Relating to a choice between two or more possibilities. • alternative adj. Other; different from something else. • alternative adj. Not traditional, outside the mainstream, underground. |
| ALTERNATORS | • alternators n. Plural of alternator. • ALTERNATOR n. an electric generator for producing alternating current. |
| ALTIMETRIES | • altimetries n. Plural of altimetry. • ALTIMETRY n. the art of measuring altitudes, or heights. |
| ALTITUDINAL | • altitudinal adj. Of or in relation to altitude. • ALTITUDINAL adj. relating to altitude. |
| ALTOCUMULUS | • altocumulus n. (Physics, meteorology) A fleecy cloud formation consisting of large whitish or greyish globular cloudlets… • ALTOCUMULUS n. (Latin) a type of cloud. |
| ALTOGETHERS | • altogethers n. Plural of altogether (“nakedness”). • altogethers n. (Obsolete) The way things are; circumstances. • altogethers adv. (Obsolete) Alternative form of altogether. |
| ALTORUFFLED | • ALTORUFFLED adj. (Milton) altogether ruffled. |
| ALTOSTRATUS | • altostratus n. (Physics, meteorology) A principal medium-level cloud type in the form of a gray or bluish (never white)… • ALTOSTRATUS n. (Latin) a type of cloud. |