vestigial

the vestigial wings of kiwis are entirely hidden.

维鸟退化了翅膀已完全看不见。

he felt a vestigial flicker of anger from last night.

对昨晚事他还觉得有一丝恼。

Any of several small, slow-moving, nocturnal prosimian primates of the genera Loris and Nycticebus of tropical Asia, having dense woolly fur, large eyes, and a vestigial tail.

科；懒科；指科；大科；在某些分类中，替原亚目；在另外一些分类中，被认为是原亚目一个亚部。