Abstract  —adj. 1 a of or existing in thought or theory rather than matter or practice; not concrete. B (of a word, esp. A noun) denoting a quality, condition, etc., not a concrete object. 2 (of art) achieving its effect by form and colour rather than by realism. —v. 1 (often foll. By from) extract, remove. 2 summarize. —n. 1 summary. 2 abstract work of art. 3 abstraction or abstract term. [latin: related to *tract1]