elasmobranch
/ɪˈlæzməʊbræŋk/noun
1- Zoology a cartilaginous fish of a group that comprises the sharks, rays, and skates【动】板鳃亚纲的鱼（如鲨、和鳐）。 比较SELACHIAN.
1.1
- Subclass Elasmobranchii, class Chondrichthyes.板鳃亚纲, 软骨鱼纲。
词源
late 19th cent.: from modern Latin Elasmobranchii (plural), from Greek elasmos 'beaten metal' + brankhia 'gills'.