- having the form of a bunch of grapes: botryoidal hematite.
Also bot·ry·oid, botryose.
Origin of botryoidal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for botryoidal
A fibrous variety with a botryoidal or globular surface is known as botryolite.
At Arendal in Norway, the original locality for both the crystallized and botryoidal varieties, it is found in a bed of magnetite.
These shells occur at Hartlepool and Sunderland, where the rock assumes an oolitic and botryoidal character.A Manual of Elementary Geology
Our decks became dry, and studded with botryoidal lumps of dirty foot-trodden ice.Adrift in the Arctic Ice Pack
Elisha Kent Kane
It is never found as crystals, but always as encrusting and botryoidal masses with a microcrystalline structure.
botryose (ˈbɒtrɪˌəʊs, -ˌəʊz)
- (of minerals, parts of plants, etc) shaped like a bunch of grapes
C18: from Greek botruoeidēs, from botrus cluster of grapes; see -oid
- Shaped like a bunch of grapes. Certain minerals and parts of organisms can be botryoidal.
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