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单词 ootheca
释义

oothecan.

Brit. /ˌəʊəˈθiːkə/, U.S. /ˌoʊoʊˈθikə/
Inflections: Plural oothecae.
Forms: 1800s– ootheca, 1800s– oötheca.
Origin: Formed within English, by compounding. Etymons: oo- comb. form, theca n.
Etymology: < oo- comb. form + theca n. Compare French oothèque (1868 in Littré).
1. Zoology. The egg-case of certain invertebrates, esp. orthopteroid insects.
ΚΠ
1851 S. P. Woodward Man. Mollusca i. 136 Spawn (ootheca) vermiform, thick, semicircular.
1883 Science 6 Apr. 260/1 New species, and a large number of new varieties, are described,—not merely the shell, but, in a majority of cases, the embryo, oötheca, [etc.].
1944 R. Matheson Entomol. for Introd. Courses viii. 153 Each ootheca is divided into two parallel spaces, in each of which is a row of separate chambers, each chamber containing an egg.
1956 Nature 18 Feb. 319/2 K. M. Rudall..showed pictures of the thin ribbon-like units of the ootheca of the praying mantis.
2000 C. Tudge Variety of Life ii. x. 300 Cockroaches lay their eggs in cases called oothecae.
2. Botany. The sporangium of a fern. Obsolete. rare.Apparently only attested in dictionaries or glossaries.
ΚΠ
1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Ootheca, a term applied to the ovaries of the filices.
This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022).
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