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单词 θ38618
释义
the world > animals > birds > young bird > [adjective] > bearing helpless young (2)
altricial1869

Of a young bird or (in later use also) other animal: confined to the nest, burrow, etc., until sufficiently developed to live without parental…

nidicolous1902

= altricial, adj. Cf. nidifugous, adj.

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