prism[5 prizEm]n.[物]棱镜, [数]棱柱A solid figure whose bases or ends have the same size and shape and are parallel to one another, and each of whose sides is a parallelogram.棱柱（体），角柱（体）：多面固体，上下两底面大小、形状相同，且彼此平行，其余诸面则为平行四边形A transparent body of this form, often of glass and usually with triangular ends, used for separating white light passed through it into a spectrum or for reflecting beams of light.棱镜：这种形状的透明体，多为玻璃制成，通常两端为三角形，用来分解穿过柱体的白光，使光束发生色散或用来反射光线A cut-glass object, such as a pendant of a chandelier.刻花玻璃物体：如枝形吊灯的玻璃吊灯架A crystal form consisting of three or more similar faces parallel to a single axis.斜方晶：有三个或三个以上类似的面，且各面均平行于一根轴的一种晶体形式A medium that misrepresents whatever is seen through it.折光体：扭曲通过它看到的东西的中介质
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