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单词 tomium
释义

tomiumn.

Brit. /ˈtəʊmɪəm/, U.S. /ˈtoʊmiəm/
Inflections: Plural tomia Brit. /ˈtəʊmɪə/, U.S. /ˈtoʊmiə/.
Origin: A borrowing from Latin. Etymon: Latin tomium.
Etymology: < scientific Latin tomium ( J. K. W. Illiger Prodromus systematis mammalium et avium (1811) 20) < ancient Greek τομός cutting, sharp (see -tome comb. form) + classical Latin -ium (compare -y suffix4).
Ornithology.
Each of the cutting edges of a bird's bill.
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the world > animals > birds > parts of or bird defined by > [noun] > beak or bill > parts of
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1824 T. Horsfield Zool. Res. Java [Falco ichthyætus] The upper mandible is abruptly inflected beyond the middle, has a long claw, and strongly curved cutting edges or tomia.
1834 R. Mudie Feathered Tribes Brit. Islands I. 348 They [sc. tits]..do not..grind hard substances between the oblique tomia, like the birds which feed on grain.
1874 E. Coues Birds Northwest 622 Bill greenish-yellow, chrome along the tomia.
1890 E. Coues Handbk. Field & Gen. Ornithol. ii. 152 The mandibular tomium.
1970 Condor 72 486/2 The tomia and ricti were creamy white, and the inside mouth lining was yellowish.
2012 M. P. Martyniuk Field Guide Mesozoic Birds 40 Some of these clearly show teeth erupting directly from the tomia.
This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022).
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