绿洲 lǜzhōu oasis Definitions Defs Origin Strokes Stroke Words Sentences Sents 绿 綠 lǜ adjective green the color of grass or leaves, formed by mixing blue and yellow pigments洲 zhōu noun islet (bound form) A small island in a river or a sandbar formed by silt deposits; also used for landforms like a 三角洲 sānjiǎozhōu or 绿洲 lǜzhōu