vt.

1. 使有差异；构成……间的差别[（+from）]
   Coloring differentiates the sexes in many birds.

   鸟的雌雄通常可就其颜色予以区分。

2. 区别，区分；鉴别[（+from）]
   A botanist can differentiate varieties of plants.

   植物学家能鉴别各种各样的植物。

3. 使变异
4. 【数】求……的微分

vi.

1. 区别，区分；鉴别[（+between）]
   differentiate between good and evil

   分清善恶

2. 区别对待[（+between）]
   It is wrong to differentiate between pupils according to their family background.

   按家庭出身区别对待学生的做法是错误的。

3. 【生】分化

v.

1. recognize or identify as different; distinguish.
   ▸cause to appear different or distinct.
2. technical make or become different in the process of growth or development.
3. Mathematics  transform (a function) into its derivative.