WordReference Random House Unabridged Dictionary of American English © 2025
tor•toise-core
(tôr′təs kôr′, -kōr′),USA pronunciation n.
- Archaeologya late Lower and Middle Paleolithic stone core characteristic of the Levalloisian tradition of toolmaking, having a rounded top and flattish bottom and prepared in advance to permit the removal of a single ellipsoid flake with one blow from a stone hammer.
- 1915–20
'tortoise-core' also found in these entries (note: many are not synonyms or translations):