5th century bc Greek philosopher, who originated the atomist theory of matter, developed by his disciple, Democritus
[loo-sahyt] /ˈlu saɪt/ noun 1. a whitish or grayish mineral, potassium aluminum silicate, KAlSi 2 O 6 , found in alkali volcanic rocks. /ˈluːsaɪt/ noun 1. a grey or white mineral consisting of potassium aluminium silicate: a source of potash for fertilizers and of aluminium. Formula: KAlSi2O6
1. variant of . combining form 1. white or lacking colour: leucocyte, leucorrhoea, leukaemia leuco- pref. Variant of leuko-.
[loo-koh] /ˈlu koʊ/ noun, Chemistry. 1. a noncolored or slightly colored compound that is produced by reducing a dye and is readily oxidized to regenerate the dye. /ˈluːkəʊ/ noun 1. a colourless compound formed by reducing a dye so that the original dye can be regenerated by oxidation
[loo-kuh-blast] /ˈlu kəˌblæst/ noun 1. . [loo-kuh-blast] /ˈlu kəˌblæst/ noun, Cell Biology. 1. an immature leukocyte. /ˈluːkəʊˌblɑːst/ noun 1. an immature leucocyte leukoblast leu·ko·blast (lōō’kə-blāst’) n. An immature white blood cell formed during the transition from lymphoidocyte to promyelocyte. Also called proleukocyte. leu’ko·blas’tic adj.