##### The Collaborative International Dictionary

### Biprism

Biprism \Bi"prism\, n. [Pref. bi- + prism.]

A prism whose refracting angle is very nearly 180 degrees.

A combination of two short rectangular glass prisms cemented together at their diagonal faces so as to form a cube; -- called also optical cube. It is used in one form of photometer.

##### Wiktionary

### biprism

n. 1 (context mathematics English) A fusion of two triangular prisms 2 (context physics English) An optical device of this construction used to generate interference fringes

##### WordNet

### biprism

n. an optical device for obtaining interference fringes

#### Usage examples of "biprism".

I do know that the generalized Schmitt-Conway __biprism__ will tile aperiodically in all dimensions of the form 3 times M.