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Prismatic blade

In archaeology, a prismatic blade is a long, narrow, specialized lithic flake with parallel margins that may derive from a polyhedral blade core. Prismatic blades are often triangular in cross section with several facets or flake scars on the dorsal surface.

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... (one for each of the nominal cases, and a few others besides); in a tatpurusha, one component is related to another. For example, a doghouse is a dative compound, a ...