1. not fully developed in mature animals;

   "rudimentary wings"
   

1.残存的;残余的;遗留的
vestigial is used to describe the small amounts of something that still remain of a larger or more important thing.

e.g. vestigial remains of these plays are now seen in the Christmas pantomime.
在圣诞节演出的哑剧中还能看到这些戏剧残留下来的痕迹。

1. 残翅：摩尔根发现果蝇的红眼和紫眼(purple)、长翅和残翅(vestigial)两对性状都是非伴性遗传,各自的遗传都符合孟德尔法则. 他们将红眼长翅的果蝇和紫眼残翅的果蝇进行杂交,F1代为红眼长翅,然后将F1和双隐性的亲本进行测交,

2. vestigial的近义词

2. 退化的,发育不全的：slur 含糊的发音:不清楚地发出 |vestigial 退化的,发育不全的 | prestigious 享有声望的, 声望很高的

3. vestigial的翻译

3. 发育不全的：vestibulo?spinal tract 前庭脊髓径 |vestigial 发育不全的 |vestigial organ 退化器官

4. 退化的：vestige遗迹,痕迹n |vestigial退化的a | veteran老兵