1. the scar on certain seeds marking its point of attachment to the funicle. 
   种子上的疤痕，系胚珠于胚珠柄的痕迹。
2. Flattened along the dorsal and ventral surfaces. 
   匍匐的沿着背部和腹部表面变平的
3. The analogous dorsal region in other animals. 
   动物的背部其它动物相似的背部部位
4. dogfishes having a spine in each dorsal fin. 
   背鳍上各有一刺的角鲨鱼。
5. black-and-white drumfish with an erect elongated dorsal fin. 
   长有细长直立背鳍身体花白的石首鱼。

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