prism
noun/ˈprɪzəm/
/ˈprɪzəm/
- (geometry) a solid figure with ends that are parallel (= the same distance apart at every point) and of the same size and shape, and with sides whose opposite edges are equal and parallelTopics Colours and Shapesc2
Want to learn more?
Find out which words work together and produce more natural sounding English with the Oxford Collocations Dictionary app.
- a clear glass or plastic object, often with ends in the shape of a triangle, which separates light that passes through it into the colours of the rainbow
Word Originlate 16th cent.: via late Latin from Greek prisma ‘thing sawn’, from prizein ‘to saw’.
Check pronunciation:
prism