cyathiumn.

Brit.

/sʌɪˈaθɪəm/, U.S.

/saɪˈæθiəm/

Inflections: Plural cyathia.

Origin: A borrowing from Latin. Etymon: Latin cyathium.

Etymology: < scientific Latin cyathium (1837 or earlier) < cyathus , denoting various cup-like structures in botany (see cyathus n.) + -ium (see -y suffix⁴).

Botany.

A cup-shaped inflorescence found in plants of the genus Euphorbia (family Euphorbiaceae), consisting of a central reduced female flower surrounded by multiple reduced male flowers, enclosed within an involucre.

ΚΠ

1872 Amer. Jrnl. Sci. & Arts 3rd Ser. 3 151 Eugene Warming has published..an article of 108 pages upon the question of whether the Cyathium of Euphorbia is a flower or an inflorescence.

1917 Bot. Gaz. 63 273 There seems to be little possibility for self-pollination, for the neck of the cyathium is very small.

1991 A. D. Bell Plant Form i. 8 (caption) Euphorbia peplus. The inflorescence consists of a symmetrical set of cyathia, each resembling a flower but in fact composed of numerous much reduced flowers.

2015 Greenville (S. Carolina) News 19 Dec. d1 Competitiveness among breeders..unlocked the secret to producing a branching poinsettia, as well as a compact cluster of cyathia for a tight center, and more attractive bracts.

This is a new entry (OED Third Edition, June 2022).

单词	cyathium
释义	cyathiumn. Brit. /sʌɪˈaθɪəm/, U.S. /saɪˈæθiəm/ Inflections: Plural cyathia. Origin: A borrowing from Latin. Etymon: Latin cyathium. Etymology: < scientific Latin cyathium (1837 or earlier) < cyathus , denoting various cup-like structures in botany (see cyathus n.) + -ium (see -y suffix⁴). Botany. A cup-shaped inflorescence found in plants of the genus Euphorbia (family Euphorbiaceae), consisting of a central reduced female flower surrounded by multiple reduced male flowers, enclosed within an involucre. ΚΠ 1872 Amer. Jrnl. Sci. & Arts 3rd Ser. 3 151 Eugene Warming has published..an article of 108 pages upon the question of whether the Cyathium of Euphorbia is a flower or an inflorescence. 1917 Bot. Gaz. 63 273 There seems to be little possibility for self-pollination, for the neck of the cyathium is very small. 1991 A. D. Bell Plant Form i. 8 (caption) Euphorbia peplus. The inflorescence consists of a symmetrical set of cyathia, each resembling a flower but in fact composed of numerous much reduced flowers. 2015 Greenville (S. Carolina) News 19 Dec. d1 Competitiveness among breeders..unlocked the secret to producing a branching poinsettia, as well as a compact cluster of cyathia for a tight center, and more attractive bracts. This is a new entry (OED Third Edition, June 2022). < n.1872
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