1. 凸起：针孔 pin-hole | 凸起 protuberance | 烘箱老化 oven ageing

2. 隆凸：protrusion 伸出 | protuberance 隆凸 | protuberant abdomen 隆凸腹

3. 突起：protrusive 推出的 | protuberance 突起 | protuberant 突起的

4. 凸起形：protrusion 伸出 | protuberance 凸起形 | proud exposure 出露高度

1. 鼓起的部分；隆起的部分
A protuberance is a rounded part that sticks out from the surface of something.

e.g. ...a protuberance on the upper jawbone.
下颌骨上部的隆起部分

noun

1. something that bulges out or is protuberant or projects from its surroundings

e.g. the gun in his pocket made an obvious bulge
the hump of a camel
he stood on the rocky prominence
the occipital protuberance was well developed
the bony excrescence between its horns

Synonym: bulgebumphumpswellinggibbositygibbousnessjutprominenceprotrusionextrusionexcrescence

2. the condition of being protuberant
the condition of bulging out

e.g. the protuberance of his belly