humpback
名词 humpback:
an abnormal backward curve to the vertebral column
同义词:kyphosis, hunchback
a person whose back is hunched because of abnormal curvature of the upper spine
同义词:hunchback, crookback
large whalebone whale with long flippers noted for arching or humping its back as it dives
同义词:humpback whale, Megaptera novaeangliae