botryoid

botryoidal

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


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

botryoidally, adverb
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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]

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American Heritage
Medical Dictionary

botryoid bot·ry·oid (bŏt'rē-oid')
adj.
Having numerous rounded protuberances resembling a bunch of grapes.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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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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