tortoise-core — | ̷ ̷(ˌ) ̷ ̷| ̷ ̷ noun : a stone core shaped like the carapace of a tortoise and constituting the nodule from which prehistoric man flaked off material for tools * * * /tawr teuhs kawr , kohr /, n. Archaeol. a late Lower and Middle Paleolithic… … Useful english dictionary
tortoise-core — tor′toise core n. ara Archaeol. a stone core of the Levalloisian tradition, having a rounded top and flattish bottom and prepared so as to permit a single flake to be struck from it • Etymology: 1915–20 … From formal English to slang
Desert tortoise — Desert tortoise, G. agassizii Conservation status … Wikipedia
Stone Age — the period in the history of humankind, preceding the Bronze Age and the Iron Age, and marked by the use of stone implements and weapons: subdivided into the Paleolithic, Mesolithic, and Neolithic periods. [1860 65] * * * First known period of… … Universalium
Levallois technique — The Levallois technique is a name given by archaeologists to a distinctive type of flint knapping developed by humans during the Palaeolithic period.It is named after nineteenth century finds of flint tools in the Levallois Perret… … Wikipedia
Levalloisian stone-flaking technique — ▪ anthropology toolmaking technique of prehistoric Europe and Africa, characterized by the production of large flakes (flake tool) from a tortoise core (prepared core shaped much like an inverted tortoise shell). Such flakes, seldom further … Universalium
turtleback — /terr tl bak /, n. 1. Archaeol. tortoise core. 2. Furniture. an oval or elliptical boss. [1880 85; TURTLE1 + BACK1] * * * … Universalium
Черепаховидный нуклеус — (англ. tortoise core), см. Леваллуа … Археологический словарь
turtleback — tur•tle•back [[t]ˈtɜr tlˌbæk[/t]] n. ara tortoise core • Etymology: 1880–85 … From formal English to slang
turtleback — I. ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun Etymology: turtle (II) + back : a raised convex surface: as a. : an oval boss especially on furniture b. : a raised obstruction sometimes illuminated and placed in the pavement at a street intersection for the guidance of… … Useful english dictionary