WordReference Random House Unabridged Dictionary of American English © 2019
has•tate  (hastāt),USA pronunciation adj. [Bot.]
  1. Botany(of a leaf ) triangular or shaped like an arrow, with two spreading lobes at the base.
hastate•ly, adv. 
  • Latin hastātus armed with a spear, equivalent. to hast(a) spear + -ātus -ate1
  • 1780–90

Collins Concise English Dictionary © HarperCollins Publishers::

hastate /ˈhæsteɪt/ adj
  1. (of a leaf) having a pointed tip and two outward-pointing lobes at the base
Etymology: 18th Century: from Latin hastātus with a spear, from hasta spear


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