| 单词 | tortoise-core |
| 释义 | tortoise-core[ tawr-tuhs-kawr, -kohr ] / ˈtɔr təsˌkɔr, -ˌkoʊr / nounArchaeology. a 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. Origin of tortoise-coreFirst recorded in 1915–20 Words nearby tortoise-coretortillon, tortious, tortoise, tortoise beetle, tortoise brooch, tortoise-core, tortoise plant, tortoiseshell, tortoiseshell cat, tortoiseshell turtle, Tortola Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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