metapterygiumn.

Brit.

/ˌmɛtəptəˈrɪdʒɪəm/, U.S.

/ˌmɛdəptəˈrɪdʒ(i)əm/

Inflections: Plural metapterygia.

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

Etymology: < German Metapterygium ( C. Gegenbaur Grundzüge der vergleichenden Anatomie (ed. 2, 1870) 684) < meta- meta- prefix (compare meta- prefix 3) + ancient Greek πτερύγιον (see pterygium n.). Compare mesopterygium n. and propterygium n.

Ichthyology.

The prominent posterior cartilage at the base of the pectoral (and sometimes pelvic) fin in certain cartilaginous fishes.

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 These pieces have been called by Gegenbaur the metapterygium (humerus), mesopterygium, and propterygium; the first being axial, the second and third being divergent from it.

1880 A. Günther Introd. Study of Fishes iv. 80 The pectoral fin is supported by three bones, pro-, meso-, and metapterygium.

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 (note) Some sharks have three elements attaching basally, termed the pro-, meso-, and metapterygium, but there is great variation in elements other than the metapterygium.

1994 Development Suppl. 175/2 Clear pelvic metapterygia are restricted to chondrosteans.

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

单词	metapterygium
释义	metapterygiumn. Brit. /ˌmɛtəptəˈrɪdʒɪəm/, U.S. /ˌmɛdəptəˈrɪdʒ(i)əm/ Inflections: Plural metapterygia. Origin: A borrowing from German. Etymon: German Metapterygium. Etymology: < German Metapterygium ( C. Gegenbaur Grundzüge der vergleichenden Anatomie (ed. 2, 1870) 684) < meta- meta- prefix (compare meta- prefix 3) + ancient Greek πτερύγιον (see pterygium n.). Compare mesopterygium n. and propterygium n. Ichthyology. The prominent posterior cartilage at the base of the pectoral (and sometimes pelvic) fin in certain cartilaginous fishes. 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 These pieces have been called by Gegenbaur the metapterygium (humerus), mesopterygium, and propterygium; the first being axial, the second and third being divergent from it. 1880 A. Günther Introd. Study of Fishes iv. 80 The pectoral fin is supported by three bones, pro-, meso-, and metapterygium. 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 (note) Some sharks have three elements attaching basally, termed the pro-, meso-, and metapterygium, but there is great variation in elements other than the metapterygium. 1994 Development Suppl. 175/2 Clear pelvic metapterygia are restricted to chondrosteans. This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022). < n.1871
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