An example of a prism is a glass object in a specific geometric shape that makes white light to show all the colors of the rainbow.
Origin of prism
- Late Latin prīsma from Greek prīsma thing sawed off, prism from prīzein to saw variant of prīein
From American Heritage Dictionary of the English Language, 5th Edition
- Late Latin prisma, from Ancient Greek Ï€ÏÎ¯ÏƒÎ¼Î± (prisma, “something sawed"), from Ï€ÏÎ¯Î¶ÎµÎ¹Î½ (prizein, “to saw").