from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Shaped like a bunch of grapes. Used especially of mineral formations: botryoidal hematite.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having the form of a bunch of grapes.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. resembling a cluster of grapes in form
From Greek botruoeidēs : botrus, bunch of grapes + -oeidēs, -oid.(American Heritage® Dictionary of the English Language, Fourth Edition)