noun
: a hemlock ( Tsuga mertensiana ) of the western United States that attains large size and has wood much harder than that of Canadian hemlock — called also black hemlock
noun
: a hemlock ( Tsuga mertensiana ) of the western United States that attains large size and has wood much harder than that of Canadian hemlock — called also black hemlock
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012