Source : Webster's Revised Unabridged Dictionary (1913)

Petiolar \Pet"i*o*lar\, Petiolary \Pet"i*o*la*ry\, a. [Cf. F.
   p['e]tiolarie.] (Bot.)
   Of or pertaining to petiole, or proceeding from it; as, a
   petiolar tendril; growing or supported upon a petiole; as, a
   petiolar gland; a petiolar bud.