DICT.TW Dictionary Taiwan
18.227.21.101
Search for:
▼[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

1 definition found

From: Webster's Revised Unabridged Dictionary (1913)

 Bi·prism n.
 1.  A prism whose refracting angle is very nearly 180 degrees.
 2.  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.
 ◄ ►