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单词 dentary
释义

Definition of dentary in English:

dentary

nounPlural dentaries ˈdɛnt(ə)riˈdɛn(t)əri
Zoology
  • The anterior bone of the lower jaw which bears the teeth. In mammals it forms the whole of the lower jaw (or mandible).

    Example sentencesExamples
    • Associated remains found with this skeleton consist of acid - etched vertebrae and a fragmentary dentary from juvenile hadrosaur dinosaurs.
    • Even at first glance, the shape of the four-inch-long bone and the linear arrangement of tooth sockets told us that this was a dentary, or tooth-bearing portion of a lower jaw.
    • Mammals are unique among extant vertebrates in possessing a lower jaw formed by a single bony element, the dentary.
    • During mammalian evolution, the lower jaw became just one bone, the dentary, with the articular no longer attached to the lower jaw.
    • This tusk may be associated with the left dentary of the old animal.

Origin

Mid 19th century: from late Latin dentarius, from Latin dens, dent- 'tooth'.

 
 

Definition of dentary in US English:

dentary

nounˈdɛn(t)əriˈden(t)ərē
Zoology
  • The anterior bone of the lower jaw which bears the teeth. In mammals it forms the whole of the lower jaw (or mandible).

    Example sentencesExamples
    • During mammalian evolution, the lower jaw became just one bone, the dentary, with the articular no longer attached to the lower jaw.
    • This tusk may be associated with the left dentary of the old animal.
    • Associated remains found with this skeleton consist of acid - etched vertebrae and a fragmentary dentary from juvenile hadrosaur dinosaurs.
    • Mammals are unique among extant vertebrates in possessing a lower jaw formed by a single bony element, the dentary.
    • Even at first glance, the shape of the four-inch-long bone and the linear arrangement of tooth sockets told us that this was a dentary, or tooth-bearing portion of a lower jaw.

Origin

Mid 19th century: from late Latin dentarius, from Latin dens, dent- ‘tooth’.

 
 
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更新时间:2024/12/23 23:54:41