obdeltoidadj.

Brit.

/ɒbˈdɛltɔɪd/, U.S.

/ɑbˈdɛlˌtɔɪd/

Origin: Formed within English, by derivation. Etymons: ob- prefix, deltoid adj.

Etymology: < ob- prefix + deltoid adj.

Botany.

Inversely deltoid; of a triangular form, with the apex downward, or at the base of the organ or part.

ΚΠ

1891 Cent. Dict. Obdeltoid, in nat. hist., inversely deltoid; triangular with the apex downward.

1941 Amer. Midland Naturalist 26 7 Crown scales..obdeltoid, lacerate–ciliate or cleft to the base.

1962 L. D. Benson Plant Taxonomy i. ii. 31 (table) Petal shape..Obdeltoid-orbiculate.

1998 Internat. Jrnl. Plant Sci. 159 265/2 The primordium..assumes a rounded, obdeltoid appearance.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	obdeltoid
释义	obdeltoidadj. Brit. /ɒbˈdɛltɔɪd/, U.S. /ɑbˈdɛlˌtɔɪd/ Origin: Formed within English, by derivation. Etymons: ob- prefix, deltoid adj. Etymology: < ob- prefix + deltoid adj. Botany. Inversely deltoid; of a triangular form, with the apex downward, or at the base of the organ or part. ΚΠ 1891 Cent. Dict. Obdeltoid, in nat. hist., inversely deltoid; triangular with the apex downward. 1941 Amer. Midland Naturalist 26 7 Crown scales..obdeltoid, lacerate–ciliate or cleft to the base. 1962 L. D. Benson Plant Taxonomy i. ii. 31 (table) Petal shape..Obdeltoid-orbiculate. 1998 Internat. Jrnl. Plant Sci. 159 265/2 The primordium..assumes a rounded, obdeltoid appearance. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < adj.1891
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