Source : Webster's Revised Unabridged Dictionary (1913)

Alveolate \Al"ve*o*late\, a. [L. alveolatus, fr. alveolus.]
   (Bot.)
   Deeply pitted, like a honeycomb.

Source : WordNet®

alveolate
     adj : pitted with cell-like cavities (as a honeycomb) [syn: {faveolate},
            {cavitied}, {honeycombed}, {pitted}]