DICT.TW Dictionary Taiwan
3.141.25.100
Search for:
▼[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

1 definition found

From: Webster's Revised Unabridged Dictionary (1913)

 Wol·las·ton's dou·blet  Optics A magnifying glass consisting of two plano-convex lenses. It is designed to correct spherical aberration and chromatic dispersion.
 Note: Under "wollastonite" the eponymous inventor is described as a chemist.
 ◄ ►