Botryoid
Pronunciation : Bot"ry*oid, Bot`ry*oid"al
Part of Speech : a.
Etymology : [Gr. cluster of grapes + -oid.]
Definition : Defn: Having the form of a bunch of grapes; like a cluster of grapes, as a mineral presenting an aggregation of small spherical or spheroidal prominences.
Source : Webster's Unabridged Dictionary, 1913