tropeicadj.

Brit.

/trəʊˈpiːɪk/,

/trəʊˈpeɪɪk/, U.S.

/troʊˈpiᵻk/,

/troʊˈpeɪᵻk/

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek τρόπεως , τρόπις , -ic suffix.

Etymology: < ancient Greek τρόπεως, genitive of τρόπις keel (see tropis n.) + -ic suffix.

Zoology. Now rare.

Designating longitudinal muscular ridges on the ventral midline of the abdomen in frilled sharks (genus Chlamydoselachus).

ΚΠ

1885 S. Garman in Bull. Mus. Compar. Zoöl. Harvard 12 21 The fibre in these tropeic (τρόπεως, the keel of a ship) or keel muscles differs from that in the walls of the flank in being coarser in the bundles and plates, and more loosely put together.

1903 S. Garman in Bull. Mus. Compar. Zoöl. Harvard 39 235 A fold below the abdomen behind the ventrals, somewhat like the tropeic fold in certain sharks.

1937 B. G. Smith in E. W. Gudger Anat. Frilled Shark 385 These modifications have to do with..the inrolling of the ventral column of the ventrolateral bundle to form the muscles of the tropeic folds—structures peculiar to Chlamydoselachus.

2001 L. J. V. Compagno Sharks of World (rev. ed.) II. Gloss. 29/1 Tropeic folds, longitudinal paired ridges on the ventral midline of the abdomen in frilled sharks (Chlamydoselachidae).

This entry has been updated (OED Third Edition, March 2014; most recently modified version published online March 2022).

单词	tropeic
释义	tropeicadj. Brit. /trəʊˈpiːɪk/, /trəʊˈpeɪɪk/, U.S. /troʊˈpiᵻk/, /troʊˈpeɪᵻk/ Origin: A borrowing from Greek, combined with an English element. Etymons: Greek τρόπεως , τρόπις , -ic suffix. Etymology: < ancient Greek τρόπεως, genitive of τρόπις keel (see tropis n.) + -ic suffix. Zoology. Now rare. Designating longitudinal muscular ridges on the ventral midline of the abdomen in frilled sharks (genus Chlamydoselachus). ΚΠ 1885 S. Garman in Bull. Mus. Compar. Zoöl. Harvard 12 21 The fibre in these tropeic (τρόπεως, the keel of a ship) or keel muscles differs from that in the walls of the flank in being coarser in the bundles and plates, and more loosely put together. 1903 S. Garman in Bull. Mus. Compar. Zoöl. Harvard 39 235 A fold below the abdomen behind the ventrals, somewhat like the tropeic fold in certain sharks. 1937 B. G. Smith in E. W. Gudger Anat. Frilled Shark 385 These modifications have to do with..the inrolling of the ventral column of the ventrolateral bundle to form the muscles of the tropeic folds—structures peculiar to Chlamydoselachus. 2001 L. J. V. Compagno Sharks of World (rev. ed.) II. Gloss. 29/1 Tropeic folds, longitudinal paired ridges on the ventral midline of the abdomen in frilled sharks (Chlamydoselachidae). This entry has been updated (OED Third Edition, March 2014; most recently modified version published online March 2022). < adj.1885
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