dorsal

adj

1. facing away from the axis of an organ or organism

e.g. the abaxial surface of a leaf is the underside or side facing away from the stem

Synonym: abaxial

2. belonging to or on or near the back or upper surface of an animal or organ or part

e.g. the dorsal fin is the vertical fin on the back of a fish and certain marine mammals

1. (鱼或动物的)背部的，背上的，背侧的
Dorsal means relating to the back of a fish or animal.

e.g. ...a dolphin's dorsal fin.
海豚的背鳍

1. 背侧：几年前就有研究显示眼碟的背侧(dorsal)与腹侧(ventral)交会的边界(背腹中线)很重要,这两群细胞的接触,使得背腹中线的Notch蛋白被激活,促进眼碟的细胞分裂.

2. 背侧的：dormitive 安眠的 | dorsal 背侧的 | dorsal chord 脊索

3. 背面的：dorr thickener 道尔型浓缩机 | dorsal 背面的 | dorsal fin 背

4. 背的：dorsal fin 背鳍 | dorsal 背的 | Dorsetshire 多塞特郡

5. dorsal

5. dorsal：dors.; 背部的