| hastate | <botany> A type of leaf shape, generally like an arrowhead but with triangular lobes branching out from the base of the leaf approximately at right angles. (09 Oct 1997) |
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| hastated | Shaped like the head of a halberd; triangular, with the basal angles or lobes spreading; as, a hastate leaf. Origin: L. Hastatus, fr. Hasta spear. Cf. Gad. Source: Websters Dictionary (01 Mar 1998) |