Source : Webster's Revised Unabridged Dictionary (1913)

Limbate \Lim"bate\ (l[i^]m"b[asl]t), a. [L. limbatus, fr. limbus
   border, edge. See {Limbus}.] (Bot. & Zo["o]l.)
   Bordered, as when one color is surrounded by an edging of
   another.