calyptra
In bryophytes, a thin hood of tissue that forms from the archegonium and covers the…In bryophytes, a thin hood of tissue that forms from the archegonium and covers the developing sporophyte and is shed as it ripens.
Meaning
4 sensesIn bryophytes, a thin hood of tissue that forms from the archegonium and covers the developing sporophyte and is shed as it ripens.
Any cap-like covering of a flower or fruit, such as the operculum over the unopened buds of Eucalyptus flowers
Any of various coverings at the tips of structures, in the terminology of various authors; for example rootcaps and the apical cells of trichomes.
In flies such as the housefly, Musca, in the taxonomic order Diptera, zoological section Schizophora, subsection Calyptrata, the calyptra is a membranous rearward extension of the forewing; it covers the haltere.
- the hood or cap covering the calyx of certain plants: e.g., the California poppy
Translations
4 languagesOrigin
From Ancient Greek καλύπτρα (kalúptra, “covering or veiling”).From Ancient Greek καλύπτρα (kalúptra, “covering or veiling”).
Wiktionary, CC BY-SA 4.0 · source
Forms
plural: calyptras / calyptraeWord family
2 related wordsLessons for this word
1 lessons- A1Plural nouns — Because its plural is irregular