Word Study
pleonaste
WORDNET DICTIONARY
Noun pleonaste has 1 sense
- pleonaste(n = noun.substance) ceylonite - a dark-colored spinel containing iron; Array is a kind of spinel
CIDE DICTIONARY
pleonaste, n. [Gr. abundant, rich; cf. F. pléonaste.].
A black variety of spinel. [1913 Webster]
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