pterygostomianadj.

Brit.

/ˌtɛrɪɡəˈstəʊmɪən/, U.S.

/ˌtɛrɪɡəˈstoʊmiən/

Origin: Formed within English, by derivation. Etymons: pterygo- comb. form, -stome comb. form, -ian suffix.

Etymology: < pterygo- comb. form + -stome comb. form + -ian suffix Compare later pterygostome n.

Zoology.

= pterygostomial adj.

ΚΠ

1836 H. Milne-Edwards in Todd's Cycl. Anat. & Physiol. I. 780/1 Pterygostomian portions of the carapace.

1855 C. Knight Eng. Cycl.: Nat. Hist. III. 575 Epistome longer than wide, and the pterygostomian regions rudimentary.

1893 T. R. R. Stebbing Hist. Crustacea v. 52 On the under side [are] the pterygostomian regions, ‘the wings of the mouth’.

1944 Jrnl. Paleontol. 18 551/2 Surface of subhepatic and pterygostomian region covered with fine granules.

1995 P. J. Hayward et al. in P. J. Hayward & J. S. Ryland Handbk. Marine Fauna N.W. Europe viii. 422/2 Pandalus brevirostris... Carapace with antennal and pterygostomian spine.

This entry has been updated (OED Third Edition, September 2007; most recently modified version published online June 2022).

单词	pterygostomian
释义	pterygostomianadj. Brit. /ˌtɛrɪɡəˈstəʊmɪən/, U.S. /ˌtɛrɪɡəˈstoʊmiən/ Origin: Formed within English, by derivation. Etymons: pterygo- comb. form, -stome comb. form, -ian suffix. Etymology: < pterygo- comb. form + -stome comb. form + -ian suffix Compare later pterygostome n. Zoology. = pterygostomial adj. ΚΠ 1836 H. Milne-Edwards in Todd's Cycl. Anat. & Physiol. I. 780/1 Pterygostomian portions of the carapace. 1855 C. Knight Eng. Cycl.: Nat. Hist. III. 575 Epistome longer than wide, and the pterygostomian regions rudimentary. 1893 T. R. R. Stebbing Hist. Crustacea v. 52 On the under side [are] the pterygostomian regions, ‘the wings of the mouth’. 1944 Jrnl. Paleontol. 18 551/2 Surface of subhepatic and pterygostomian region covered with fine granules. 1995 P. J. Hayward et al. in P. J. Hayward & J. S. Ryland Handbk. Marine Fauna N.W. Europe viii. 422/2 Pandalus brevirostris... Carapace with antennal and pterygostomian spine. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online June 2022). < adj.1836
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