Lanceolate. definitions

lanceolate.

leaf-shaped; tapered at one or both ends. In archaeological usage, the term usually refers to long, slender, unnotched chipped stone projectile points .
Found on http://www.umanitoba.ca/faculties/arts/anthropology/manarchnet/appendices/g

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Lanceolate.

Lance shaped, much longer than wide; widened at or above the base and tapering to the apex
Found on https://www.ibiblio.org/pic/botanical_dictionary.htm

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