demersal
demersal[dɪˈməːs(ə)l]adjective- (typically of fish) living close to the floor of the sea or a lake
(尤指鱼)居于水底的。 常与 pelagic 相对
语源- late 19th cent.: from Latin demersus (past participle of demergere 'submerge, sink', from de- 'down' + mergere 'plunge') + -al
考试词汇表