calyptra
[ kuh-lip-truh ]
/ kəˈlɪp trə /
noun Botany.
Also called cap.
a hood or hoodlike part, as the lid of the capsule in mosses.
a root cap.
Origin of calyptra
1745–55; < New Latin < Greek
kalýptra veil, covering, equivalent to
kalýp(tein) to veil, cover +
-tra noun suffix
OTHER WORDS FROM calyptra
ca·lyp·trate [kuh-lip-treyt] /kəˈlɪp treɪt/, adjectiveWords nearby calyptra
calydonian boar,
calydonian hunt,
calymmatobacterium,
calypso,
calypsonian,
calyptra,
calyptrogen,
calyx,
calzaghe,
calzone,
calèche
Example sentences from the Web for calyptra
British Dictionary definitions for calyptra
calyptra
/ (kəˈlɪptrə) /
noun botany
a membranous hood covering the spore-bearing capsule of mosses and liverworts
any hoodlike structure, such as a root cap
Derived forms of calyptra
calyptrate (kəˈlɪpˌtreɪt), adjectiveWord Origin for calyptra
C18: from New Latin, from Greek
kaluptra hood, from
kaluptein to cover
Scientific definitions for calyptra
calyptra
[ kə-lĭp′trə ]
In some bryophyte plants, a structure that covers the young sporophyte as it develops within the tissues of its gametophyte parent. The calyptra, which consists of a thickening of the archegonium walls, eventually breaks open as the spore capsule grows.
See root cap.