名詞 baboon:

1. large terrestrial monkeys having doglike muzzles

1. The baboon has a dog-like face.
   狒狒有一張像狗一樣的臉。
2. The baboon is very ugly.
   狒狒非常丑陋。

ba.boon

n.（名詞）
Any of several large, terrestrial African and Asian monkeys of the family Cercopithecidae, especially of the genusPapio or Chaeropithecus and related genera, characterized by an elongated, doglike muzzle, a short tail, and bare calluses on the buttocks.
狒狒：一種獼猴科的大型、陸生的非洲和亞洲的猴子，尤指狒狒屬 或 Chaeropithecus 及相關(guān)的種屬，其特征為有一長的象狗一樣的口鼻和短尾，臀部有一裸露的胼胝
Slang A brutish person; a boor.
【俚語】 粗野的人；鄉(xiāng)下佬

來源：
Middle English babewin
中古英語 babewin
from Old French babuin [gaping figure, gargoyle, baboon]
源自 古法語 babuin [嘴裂，面目古怪的人，狒狒]
perhaps blend of Old French babine [muzzle,]
可能混合了 古法語 babine [口鼻]
babau [grimace]
babau [鬼臉，怪相]

【引伸】
baboon.ery
n.（名詞）
baboon.ish
adj.（形容詞）