vt.

1. 使有差異；構成……間的差別[（+from）]
   Coloring differentiates the sexes in many birds.

   鳥的雌雄通常可就其顏色予以區分。

2. 區別，區分；鑑別[（+from）]
   A botanist can differentiate varieties of plants.

   植物學家能鑑別各種各樣的植物。

3. 使變異
4. 【數】求……的微分

vi.

1. 區別，區分；鑑別[（+between）]
   differentiate between good and evil

   分清善惡

2. 區別對待[（+between）]
   It is wrong to differentiate between pupils according to their family background.

   按家庭出身區別對待學生的做法是錯誤的。

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.