N a small hooked structure, such as any of the hooked chaetae of certain polychaete worms (环节动物等的)小钩状结构 [zoology]
pectinate uncinus梳状齿钩毛
acicular uncinus刺状齿片刚毛
avicular uncinus鸟头状齿片钩毛
Cirrus uncinus cloud钩卷云
Cirrus uncinus cirrocumulogenitus卷积云衍生性钩卷云
N（名词） a small hooked structure, such as any of the hooked chaetae of certain polychaete worms (环节动物等的)小钩状结构 [zoology]