from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The protective cap or hood covering the spore case of a moss or related plant.
- n. A similar hoodlike, lidlike, or caplike structure, such as a root cap.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. In bryophytes, a thin, hood-like tissue that forms from the archegonium and covers the developing sporophyte.
from the GNU version of the Collaborative International Dictionary of English
- n. A little hood or veil, resembling an extinguisher in form and position, covering each of the small flasklike capsules which contain the spores of mosses; also, any similar covering body.
from The Century Dictionary and Cyclopedia
- n. A hood; a covering; a lid.
- n. [capitalized] In zoology: Same as Calyptræa.
- n. A genus of lepidopterous insects.
- n. A genus of cœlenterates.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the hood or cap covering the calyx of certain plants: e.g., the California poppy
Medieval Latin, from Greek kaluptra, veil, from kaluptein, to cover; see kel-1 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)