mesopterygiumn.

Brit.

/mᵻsɒptəˈrɪdʒɪəm/, U.S.

/məˌzɑptəˈrɪdʒiəm/; see also meso- comb. form.

Inflections: Plural mesopterygia Brit.

/ˌmɛsə(ʊ)t(ə)ˈrɪdʒɪə/,

/mᵻˌsɒptəˈrɪdʒɪə/, U.S.

/məˌzɑptəˈrɪdʒiə/.

Origin: A borrowing from German. Etymon: German Mesopterygium.

Etymology: < German Mesopterygium (C. Gegenbaur Grundzüge der vergleichenden Anatomie (ed. 2, 1870) vii. 684) < meso- meso- comb. form + ancient Greek πτερύγιον (see pterygium n.). Compare metapterygium n. and propterygium n.

Ichthyology.

In elasmobranch fishes: the central portion of the cartilaginous skeleton at the base of each pectoral fin.

ΘΚΠ

the world > animals > fish > parts of fish > [noun] > fin or parts of fin

finc1000

spitc1275

ray1668

pinna1688

radius1740

spine1774

interneural1854

fin-ray1863

mesopterygium1871

metapterygium1871

radiale1871

finlet1874

propterygium1876

radial1882

axonost1887

lepidotrichium1904

1871 Amer. Naturalist 5 584 In the true fishes the propterygium and mesopterygium are both wanting, excepting in Amia, Lepidosteus, and the sturgeons, where a cartilaginous mesopterygium exists, according to Gegenbaur.

1939 T. L. Green Pract. Animal Biol. i. 108 The pectoral fin consists of a series of cartilages supporting outer horny fibres:—i. Pro-, meso-, and meta-pterygia articulate with the three facets on the girdle.

1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) vii. 212 Some sharks have three elements attaching basally, termed the pro-, meso-, and metapterygium, but there is great variation in elements other than the metapterygium.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	mesopterygium
释义	mesopterygiumn. Brit. /mᵻsɒptəˈrɪdʒɪəm/, U.S. /məˌzɑptəˈrɪdʒiəm/; see also meso- comb. form. Inflections: Plural mesopterygia Brit. /ˌmɛsə(ʊ)t(ə)ˈrɪdʒɪə/, /mᵻˌsɒptəˈrɪdʒɪə/, U.S. /məˌzɑptəˈrɪdʒiə/. Origin: A borrowing from German. Etymon: German Mesopterygium. Etymology: < German Mesopterygium (C. Gegenbaur Grundzüge der vergleichenden Anatomie (ed. 2, 1870) vii. 684) < meso- meso- comb. form + ancient Greek πτερύγιον (see pterygium n.). Compare metapterygium n. and propterygium n. Ichthyology. In elasmobranch fishes: the central portion of the cartilaginous skeleton at the base of each pectoral fin. ΘΚΠ the world > animals > fish > parts of fish > [noun] > fin or parts of fin finc1000 spitc1275 ray1668 pinna1688 radius1740 spine1774 interneural1854 fin-ray1863 mesopterygium1871 metapterygium1871 radiale1871 finlet1874 propterygium1876 radial1882 axonost1887 lepidotrichium1904 1871 Amer. Naturalist 5 584 In the true fishes the propterygium and mesopterygium are both wanting, excepting in Amia, Lepidosteus, and the sturgeons, where a cartilaginous mesopterygium exists, according to Gegenbaur. 1939 T. L. Green Pract. Animal Biol. i. 108 The pectoral fin consists of a series of cartilages supporting outer horny fibres:—i. Pro-, meso-, and meta-pterygia articulate with the three facets on the girdle. 1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) vii. 212 Some sharks have three elements attaching basally, termed the pro-, meso-, and metapterygium, but there is great variation in elements other than the metapterygium. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1871
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