| 释义 |
obtrigonal, a. Nat. Hist.|ɒbˈtrɪgənəl|
[ob- 2.]
= prec. Also obˈtrigonate a.
1819G. Samouelle Entomol. Compend. 193 Opatrum..maxillary palpi with their last joint obtrigonate. 1856–8W. Clark Van der Hoeven's Zool. I. 323 Antennæ moderate, third joint..obtrigonal. Ibid. 672 Shell oblong, oval or obtrigonal. |