请输入您要查询的英文单词:

 

单词 culmen
释义

Definition of culmen in English:

culmen

nounPlural culmina ˈkʌlmɛnˈkəlmən
  • 1Ornithology
    The upper ridge of a bird's bill.

    Example sentencesExamples
    • For both species, body size traits (in mm) included mean tarsus length, mean flattened wing chord, tail length, and culmen length (base of cere to tip of beak).
    • Old World sparrows are small to medium sized, stocky birds with a short bill with a decurved culmen and short legs.
    • Before experiments began, we took standard morphometrics of wing chord length, culmen, tarsus, tail length (all to the nearest 0.1 mm), and body mass.
    • Prey size was estimated by comparing the length of the exposed bill culmen of adults with the length of the prey.
    • These seven males carried the egg away from the nest in their mandibles or rolled it out of the nest (to a distance of 30-40 cm from the nest) by pushing with the culmen.
  • 2Anatomy
    A small region in the brain on the anterior surface of the cerebellum.

    Example sentencesExamples
    • In the midline, above the central lobule, the culmen projects above the rest of the superior surface of the cerebellum.

Origin

Mid 17th century (in the sense 'top, summit'): from Latin, contraction of columen 'top, summit'.

 
 

Definition of culmen in US English:

culmen

nounˈkəlmən
  • 1Ornithology
    The upper ridge of a bird's bill.

    Example sentencesExamples
    • Before experiments began, we took standard morphometrics of wing chord length, culmen, tarsus, tail length (all to the nearest 0.1 mm), and body mass.
    • For both species, body size traits (in mm) included mean tarsus length, mean flattened wing chord, tail length, and culmen length (base of cere to tip of beak).
    • Prey size was estimated by comparing the length of the exposed bill culmen of adults with the length of the prey.
    • Old World sparrows are small to medium sized, stocky birds with a short bill with a decurved culmen and short legs.
    • These seven males carried the egg away from the nest in their mandibles or rolled it out of the nest (to a distance of 30-40 cm from the nest) by pushing with the culmen.
  • 2Anatomy
    A small region in the brain on the anterior surface of the cerebellum.

    Example sentencesExamples
    • In the midline, above the central lobule, the culmen projects above the rest of the superior surface of the cerebellum.

Origin

Mid 17th century (in the sense ‘top, summit’): from Latin, contraction of columen ‘top, summit’.

 
 
随便看

 

英语词典包含464360条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/12/24 9:28:43