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单词 polyodontid
释义

polyodontidadj.n.

Brit. /ˌpɒlɪəˈdɒntɪd/, U.S. /ˈˌpɑliəˈdɑn(t)əd/
Origin: A borrowing from Latin. Etymon: Latin Polyodontidae.
Etymology: < scientific Latin Polyodontidae, family name ( A. Günther Catal. Fishes Brit. Mus. (1870) VIII. 346) < Hellenistic Greek πολυόδους having many teeth ( < ancient Greek πολυ- poly- comb. form + ὀδοντ- , ὄδους tooth: see -odont comb. form) + scientific Latin -idae (see -id suffix3), after Polyodon , genus name (in B. G. E. de la V. de Lacépède Hist. nat. des poissons (1798) I. Table 1). Compare earlier polyodont adj., polyodont n.
Zoology.
A. adj.
Of or relating to the family Polyodontidae, comprising the paddlefishes, which have a large number of very small teeth.
ΚΠ
1947 Contrib. Mus. Paleontol. Univ. Michigan 6 167 (title) Paleopsephurus wilsoni, a new polyodontid fish from the Upper Cretaceous of Montana.
2002 Jrnl. Appl. Ichthyol. 18 405 Polypodium hydriforme is the only cnidarian adapted to intracellular parasitism in oocytes of acipenserid and polyodontid fishes.
B. n.
A fish of the family Polyodontidae; a paddlefish.
ΚΠ
1976 Science 19 Nov. 842/2 Representative polyodontids are found in fossil deposits ranging from the Upper Cretaceous to Recent.
2001 Jrnl. Biogeogr. 28 1418/1 Such comparisons rely heavily on the parasite fauna of one of the two extant polyodontids.
This is a new entry (OED Third Edition, September 2006; most recently modified version published online March 2022).
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adj.n.1947
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