altricialとは 意味・読み方・使い方

発音

• IPA^(key): /əlˈtɹɪʃəl/
• 韻: -ɪʃəl

形容詞

altricial (comparative more altricial, superlative most altricial)

1. (zoology) Helpless at birth (of young animals); or having young which are helpless at birth.
   • 2001, Gonyou, Keeling & Keeling, Social Behaviour in Farm Animals, CABI Publishing, published 2001, page 63:

     Altricial young are typical among carnivores, which might be expected to be hampered in their hunting behaviour if the pregnant mother has to carry its young for a long period.

   • 2011, Steven Pinker, The Better Angels of Our Nature, Penguin, published 2012, page 281:

     First, humans are altricial, with immature newborns and a long childhood.

   • 2016, Joseph Henrich, chapter 5, in The Secret of Our Success […] , Princeton: Princeton University Press, →ISBN:

     First, compared to other species, babies are altricial, meaning that they are weak, undermuscled, fat, and uncoordinated (sorry, babies, but it's true).

同意語

• altricious
• nidicolous

反意語

• precocial

名詞

altricial (複数形 altricials)

1. Such an animal.

参考

• precocial