actinost

名词 n.
中文释义

英文释义

名词 n.
  1. A bone at the base of a paired fin (of a fish)
    — The second well-developed actinost is below the vertebra supporting the subcaudal blood-vessels, but that is not so strong proximally as the first; the ribs are not directed downwards, but backwards, and are entirely separated from each other.

词形变化

actinosts plural

词源

From New Latin, from Ancient Greek ἀκτίς (aktís, “ray”) + ὀστέον (ostéon, “bone”).
0 次浏览 数据来源: Wiktionary