1. pinnule Finlet one of a series of small fins consisting of a few rays each, separate from each other and found posterior to the dorsal and anal fins, e. g. in Scombridae. 离鳍由一些鳍条组成的一系列小鳍,彼此间是分开的而且是在背鳍与臀鳍的后面,例如存在于鲭科鱼类。
英英解释
n.
1. division of a usually pinnately divided leaf