柯林斯詞典prism /?pr?z?m/ (prisms) 1. N-COUNT A prism is a block of clear glass or plastic that separates the light passing through it into different colours. 稜鏡2. N-COUNT a polyhedron having parallel, polygonal, and congruent bases and sides that are parallelograms 稜柱躰[maths] 返回 prism劍橋詞典a transparent glass or plastic object that separates white light that passes through it into different colours 稜鏡 返回 prism