Definition of pleonaste in English:

pleonaste

(also pleonast)

noun ˈpliːənast

Mineralogy

A dark green, brown, or black ferroan variety of spinel.

Origin

Early 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. From French pléonaste from Hellenistic Greek πλεοναστός abundant from ancient Greek πλεονάζειν to be superfluous or redundant, to abound + -τός, suffix forming verbal adjectives; so called from the multitude of faces of the crystal, each solid angle of the octahedron being often replaced by four faces.

Definition of pleonaste in US English:

pleonaste

(also pleonast)

nounˈpliːənast

Mineralogy

A dark green, brown, or black ferroan variety of spinel.

Origin

Early 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. From French pléonaste from Hellenistic Greek πλεοναστός abundant from ancient Greek πλεονάζειν to be superfluous or redundant, to abound + -τός, suffix forming verbal adjectives; so called from the multitude of faces of the crystal, each solid angle of the octahedron being often replaced by four faces.

单词	pleonaste
释义	Definition of pleonaste in English: pleonaste (also pleonast) noun ˈpliːənast Mineralogy A dark green, brown, or black ferroan variety of spinel. Origin Early 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. From French pléonaste from Hellenistic Greek πλεοναστός abundant from ancient Greek πλεονάζειν to be superfluous or redundant, to abound + -τός, suffix forming verbal adjectives; so called from the multitude of faces of the crystal, each solid angle of the octahedron being often replaced by four faces. Definition of pleonaste in US English: pleonaste (also pleonast) nounˈpliːənast Mineralogy A dark green, brown, or black ferroan variety of spinel. Origin Early 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. From French pléonaste from Hellenistic Greek πλεοναστός abundant from ancient Greek πλεονάζειν to be superfluous or redundant, to abound + -τός, suffix forming verbal adjectives; so called from the multitude of faces of the crystal, each solid angle of the octahedron being often replaced by four faces.
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