botryoidal

[bo-tree-oid-l]

bot·ry·oi·dal

[bo-tree-oid-l]
adjective Mineralogy.
having the form of a bunch of grapes: botryoidal hematite.
Also, bot·ry·oid, botryose.


Origin:
1810–20; < Greek botryoeid(ḗs) shaped like a bunch of grapes (bótry(s) bunch of grapes + -oeidēs -oid) + -al1

bot·ry·oi·dal·ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Botryoidal is always a great word to know.
So is lollapalooza. Does it mean:
a stew of meat, vegetables, potatoes, etc.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
Collins
World English Dictionary
botryoidal or botryose (ˌbɒtrɪˈɔɪdəl, ˈbɒtrɪˌəʊs, -ˌəʊz)
 
adj
(of minerals, parts of plants, etc) shaped like a bunch of grapes
 
[C18: from Greek botruoeidēs, from botrus cluster of grapes; see -oid]
 
botryose or botryose
 
adj
 
[C18: from Greek botruoeidēs, from botrus cluster of grapes; see -oid]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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American Heritage
Science Dictionary
botryoidal   (bŏt'rē-oid'l)  Pronunciation Key 
Shaped like a bunch of grapes. Certain minerals and parts of organisms can be botryoidal.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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