calyptra

calyptra is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.A little hood or veil, resembling an extinguisher in form and position, covering each of the small flaskike capsules which contain the spores of mosses; also, any similar covering body.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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