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单词 uropygium
释义

uropygium

[ yoor-uh-pij-ee-uhm ]
/ ˌyʊər əˈpɪdʒ i əm /

noun Ornithology.

the projecting terminal portion of a bird's body, from which the tail feathers spring.

Origin of uropygium

1805–15; <New Latin <Greek ouropȳ́gion, variant (with ouro-uro-2) of orropȳ́gion, equivalent to orro-, combining form of órros sacral bone + pȳg() rump, buttocks + -ion diminutive suffix

Words nearby uropygium

uropoiesis, uroporphyrin, uroporphyrinogen, uropygial, uropygial gland, uropygium, uroradiology, uroscheocele, uroschesis, uroscopy, urosepsis
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for uropygium

  • Seaside Sparrows have a mid-dorsal row of downs in the dorsal tract near the uropygium.

    Comparative Breeding Behavior of Ammospiza caudacuta and A. maritima|Glen E. Woolfenden
  • Uropygium: the ovipositor when it is a mere extension of the abdominal segments.

    Explanation of Terms Used in Entomology|John. B. Smith
  • In some of the families the uropygium is recorded as small in suspiciously close to 25 per cent of the offspring.

    Inheritance of Characteristics in Domestic Fowl|Charles Benedict Davenport
  • The tail length, however, is measured from the base of the uropygium to the tip of the longest pair of rectrices.

    The Subspecies of the Mountain Chickadee|Joseph Grinnell

British Dictionary definitions for uropygium

uropygium
/ (ˌjʊərəˈpɪdʒɪəm) /

noun

the hindmost part of a bird's body, from which the tail feathers grow

Derived forms of uropygium

uropygial, adjective

Word Origin for uropygium

C19: via New Latin from Greek ouropugion, from uro- ² + pugē rump
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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更新时间:2025/2/24 19:12:58