DICT.TW Dictionary Taiwan

 An·a·clas·tic a.
 1. Opt. Produced by the refraction of light, as seen through water; as, anaclastic curves.
 2. Springing back, as the bottom of an anaclastic glass.
 Anaclastic glass, a glass or phial, shaped like an inverted funnel, and with a very thin convex bottom. By sucking out a little air, the bottom springs into a concave form with a smart crack; and by breathing or blowing gently into the orifice, the bottom, with a like noise, springs into its former convex form.
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