Last one of these for a short while. Not at all least, however, are the nouns associated with flint tools. The original contributors to the world of flint descriptions clearly though of the prehistoric tools as like pets, given the use of ‘dorsal’ and ‘ventral’ surfaces for top and bottom (like with fish), and proximal and distal for front and back (like with animal bone). Breaking them causes a ‘bulb of percussion’, leaves ‘conchoidal ripples’ and can be worked further with ‘retouch’. Flints are a world to themselves.