| 释义 |
cercaria/sɜ:ˈkɛəriə/n. (pl. -iae /-ii:/) Zool. & Med. a free-swimming larval stage in which a parasitic fluke passes from an intermediate host (often a snail) to another intermediate host or to the final vertebrate host 【动】【医】摇尾幼虫，尾蚴(指一些昆虫在水中自由浮游的幼虫期。在此期间内，寄生吸虫从一个中间宿主(如蜗牛)传到另一个中间宿主，或者进入最终的脊椎动物宿主) [modern Latin, formed irregularly from Greek kerkos ‘tail’] |