washer

n 1 small flat ring made of rubber, metal, plastic, etc placed between two surfaces (eg under a nut) to make a screw or joint tight, prevent leakage, etc 垫圈（橡胶、 金属、 塑料等的小扁环, 垫在被连接件如螺母下使之更紧、 防漏等）. =>illus at bolt 见 bolt 插图. 2 (infml 口) automatic machine for washing clothes 洗衣机.

wary, was, wash, wash (sth) off, wash basin, wash out (of a dirty mark), wash over sb, wash sth down (with sth), wash up, wash-cloth, wash-day, wash-drawing, wash-leather, wash-out, wash-stand, wash-tub, washable, washboard, washed out, washed up, washing, washing-machine, washing-powder, washing-soda, washing-up, Washington, Washington D.C., washroom, washtub, washwoman, washy, wasn't, wasp, WASP (also Wasp), wasp-waisted, waspish, waspishly, waspishness, wassail, wastage,