Definify.com

Webster 1828 Edition

lanceolate ‎(comparative more lanceolate, superlative most lanceolate)

(botany, mycology) Having the general shape of a lance; much longer than wide, with the widest part lower than the middle and a pointed apex.
(technical) Of a class of knapped stone points, made without a stem, shoulders, notches, or other features that aid in attachment to a shaft.
- 2011, Chris Stringer, The Origin of Our Species, Penguin 2012, p. 127:
  The stone tools in these levels include Still Bay points, beautifully shaped thin lanceolate spear points, flaked on both sides.

lanceolate

lanceolāte