calyptra

Fetched 2026-10-26 (cache).

Synonyms: kalyptra, calypter, calypte, calyptras

Antonyms: kalyptra, calypter, calypte, calyptras

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|botany}} In [[bryophyte]]s, a thin [[hood]] of [[tissue]] that forms from the [[archegonium]] and covers the developing [[sporophyte]] and is shed as it ripens.<ref name= "BotGloss">Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928</ref>
2. {{lb|en|botany}} any cap-like covering of a flower or fruit, such as the ''operculum'' over the unopened buds of {{taxfmt|Eucalyptus|genus}} flowers<ref name= "BotGloss">Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928</ref>
3. {{lb|en|botany}} Any of various coverings at the tips of structures, in the terminology of various authors; for example [[rootcap]]s and the [[apical]] cells of [[trichome]]s.<ref name= "BotGloss">Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928</ref>
4. {{lb|en|entomology}} In flies such as the housefly, ''[[Musca]]'', in the [[order|taxonomic order]] {{taxfmt|Diptera|order}}, [[section|zoological section]] {{taxfmt|Schizophora|section}}, [[subsection]] {{taxfmt|Calyptrata|subsection}}, the calyptra is a [[membranous]] rearward extension of the forewing; it covers the [[haltere]].<ref>C. R, Osten Sacken. Notice on the terms: Tegula, antitegula, squama and alula, as used in Dipterology [https://archive.org/details/cbarchive_50657_noticeonthetermstegulaantitegu1881]</ref>

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.