Noun
anaclastic glass (plural anaclastic glasses)
A glass or phial, shaped like an inverted funnel, with a very thin convex bottom that can be made concave or convex by sucking out or blowing in air.
anaclastic glass (plural anaclastic glasses)
A glass or phial, shaped like an inverted funnel, with a very thin convex bottom that can be made concave or convex by sucking out or blowing in air.