Nicol prism

[ nik-uh l ]
/ ˈnɪk əl /

noun Optics.

one of a pair of prisms used to produce and analyze plane-polarized light in a polarizing microscope. Also called Nic·ol.Compare polarizer(def 1).

Origin of Nicol prism

1870–75; after William Nicol (1768–1851), British physicist, its inventor

British Dictionary definitions for nicol prism

Nicol prism
/ (ˈnɪkəl) /

noun

a device composed of two prisms of Iceland spar or calcite cut at specified angles and cemented together with Canada balsam. It is used for producing plane-polarized light

Word Origin for Nicol prism

C19: named after William Nicol (?1768–1851), Scottish physicist, its inventor