noun
Blainville's beaked whale; dense-beaked whale
A species of beaked whale (Mesoplodon densirostris). The name refers to the distinctive bony arch on the lower jaw.
コブハクジラは世界中の暖かい海に生息している。
Blainville's beaked whale inhabits warm seas around the world.
この海域ではコブハクジラが時々観察される。
Blainville's beaked whales are occasionally observed in these waters.
Compound of 瘤 (kobu, 'bump, lump') + 歯 (ha, 'tooth') + 鯨 (kujira, 'whale'), referring to the prominent tooth-like bump on the lower jaw of males. The exact derivation is uncertain, but the name is descriptive of the whale's physical feature.