noun
Etymology: so called from its having a form known from the Pleistocene
: a murrelet ( Synthliboramphus antiquum ) of the No. Pacific that is chiefly dark slate above and white below
noun
Etymology: so called from its having a form known from the Pleistocene
: a murrelet ( Synthliboramphus antiquum ) of the No. Pacific that is chiefly dark slate above and white below
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012