† obtrigonateadj.

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

Etymology: < ob- prefix + trigonate adj. Compare later obtrigonal adj. and obtriangular adj.

Entomology. Obsolete. rare.

= obtriangular adj.

ΘΚΠ

the world > life > biology > physical aspects or shapes > shape > [adjective] > triangular or three-sided

triquetral1646

trigonala1728

triquetrous1752

trigonate1815

obtrigonate1819

trigonous1821

trigonoidal1822

obtriangular1826

obtrigonal1856

1819 G. Samouelle Entomologist's Compend. 193 Opatrum..maxillary palpi with their last joint obtrigonate.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online June 2018).

单词	obtrigonate
释义	† obtrigonateadj. Origin: Formed within English, by derivation. Etymons: ob- prefix, trigonate adj. Etymology: < ob- prefix + trigonate adj. Compare later obtrigonal adj. and obtriangular adj. Entomology. Obsolete. rare. = obtriangular adj. ΘΚΠ the world > life > biology > physical aspects or shapes > shape > [adjective] > triangular or three-sided triquetral1646 trigonala1728 triquetrous1752 trigonate1815 obtrigonate1819 trigonous1821 trigonoidal1822 obtriangular1826 obtrigonal1856 1819 G. Samouelle Entomologist's Compend. 193 Opatrum..maxillary palpi with their last joint obtrigonate. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online June 2018). < adj.1819
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