| 释义 |
ac·ti·no·trich·i·um
\|aktə(ˌ)nōˈtrikēəm\ noun
also ac·tin·o·trich \akˈtinəˌtrik\
(plural ac·ti·no·trich·ia \-ˈtrikēə\ ; also ac·tin·o·trichs \-ˌtriks\)
Etymology: New Latin actinotrichium, from actin- + Greek trich-, thrix hair + New Latin -ium — more at trich-
: any of the hairy threadlike fibers in the fin fold of an embryo fish which fuse and form the base of the rays |