sinanthropus defined in 1951 yearsinanthropus - sinanthropus;
sinanthropus - Peking man. Lower Peistocene. Closely similar to (now put in same genus as) Pithecanthropus. sinus. A space. (Bot.). Recess between two lobes of a leaf or other expanded organ. (Zool.). Blood-sinus, enormously expanded vein, found particularly in elasmobranchs. Applied also to haemocoel cavity of certain invertebrates. Nasal sinus, in mammals, air-filled space within certain bones of face, lined by mucous membrane, communicating with nasal cavity.
near sinanthropus in Knolik
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