Protolithic
adjective, Anthropology.
1.
noting or pertaining to stone implements selected according to suitability of the form to a particular purpose without definite shaping on the part of the user.
adjective
1.
of or referring to the earliest Stone Age
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noun, Physics, Chemistry. 1. a positively charged elementary particle that is a fundamental constituent of all atomic nuclei. It is the lightest and most stable baryon, having a charge equal in magnitude to that of the electron, a spin of ½, and a mass of 1.673 × 10− 27 kg. Symbol: P. noun 1. a […]