bot⋅ry⋅oi⋅dal
/ˌbɒ
triˈɔɪd
l/
Show Spelled Pronunciation [bo-tree-oid-l]
Show IPA –adjective Mineralogy. | having the form of a bunch of grapes: botryoidal hematite. |
Origin: 1810–20; < Gk
botryoeid(
s) shaped like a bunch of grapes (
bótry(
s) bunch of grapes +
-oeidēs -oid ) +
-al 1 
Related forms: bot⋅ry⋅oi⋅dal⋅ly, adverb
Science Dictionary
botryoidal (bŏt'rē-oid'l) Pronunciation Key
Shaped like a bunch of grapes. Certain minerals and parts of organisms can be botryoidal.
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The American Heritage® Science Dictionary
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