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词汇 selenodont
释义

Definition of selenodont in English:

selenodont

adjective sɪˈliːnə(ʊ)dɒntsəˈlēnəˌdänt
Zoology
  • 1(of molar teeth) having crescent-shaped ridges on the grinding surfaces, characteristic of ruminant mammals.

    〔动〕(反刍动物特有的臼齿)月牙形的,月型齿的

    Example sentencesExamples
    • Cheek teeth are bunodont in some forms, but more commonly selenodont.
    • The molars of macropodids are hypsodont, quadritubercular, and either selenodont or lophodont or a combination of the two forms.
    • In selenodont molars, the enamel ridges form characteristic crescent shapes.
    • That price is the very absence of the selenodont specializations, the most obvious of which is foregut fermentation.
    • Correlated with this diet is the evolution of selenodont molar teeth - teeth with crescent-shaped ridges - for more efficient grinding of plants, as seen in this picture of Eocene artiodactyl teeth.
    1. 1.1 (of a ruminant mammal) having selenodont teeth.

Origin

Late 19th century: from seleno- 'moon-shaped' + Greek odous, odont- 'tooth'.

Definition of selenodont in US English:

selenodont

adjectivesəˈlēnəˌdänt
Zoology
  • 1(of molar teeth) having crescent-shaped ridges on the grinding surfaces, characteristic of ruminant mammals.

    〔动〕(反刍动物特有的臼齿)月牙形的,月型齿的

    Example sentencesExamples
    • That price is the very absence of the selenodont specializations, the most obvious of which is foregut fermentation.
    • Correlated with this diet is the evolution of selenodont molar teeth - teeth with crescent-shaped ridges - for more efficient grinding of plants, as seen in this picture of Eocene artiodactyl teeth.
    • In selenodont molars, the enamel ridges form characteristic crescent shapes.
    • The molars of macropodids are hypsodont, quadritubercular, and either selenodont or lophodont or a combination of the two forms.
    • Cheek teeth are bunodont in some forms, but more commonly selenodont.
    1. 1.1 (of a ruminant mammal) having selenodont teeth.

Origin

Late 19th century: from seleno- ‘moon-shaped’ + Greek odous, odont- ‘tooth’.

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