名詞 mammal:

1. any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk
   同義詞：mammalian

1. A mammal having nails or claws.
   有指甲或爪的動(dòng)物
2. A quadruped mammal.
   四足哺乳動(dòng)物
3. A whale is no less a mammal than a horse is.
   鯨魚(yú)和馬一樣都是哺乳動(dòng)物。
4. Monkeys and dogs are mammals.
   猴子和狗都是哺乳動(dòng)物。

mam.mal

n.（名詞）
Any of various warm-blooded vertebrate animals of the class Mammalia, including human beings, characterized by a covering of hair on the skin and, in the female, milk-producing mammary glands for nourishing the young.
哺乳動(dòng)物：任一種包括人類在內(nèi)的哺乳動(dòng)物綱的溫血脊椎動(dòng)物，其特點(diǎn)是皮膚上有一層毛，雌性具有養(yǎng)育幼崽的能產(chǎn)生奶汁的乳腺

來(lái)源：
From Late Latin mamm3lis [of the breast]
源自 后期拉丁語(yǔ) mamm3lis [乳房的]
from Latin mamma [breast] * see m3- 2
源自 拉丁語(yǔ) mamma [乳房] *參見(jiàn) m3- 2

【引伸】
mamma.lian