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hyalophane

American

[hahy-al-uh-feyn, hahy-uh-luh-] / haɪˈæl əˌfeɪn, ˈhaɪ ə lə- /

noun

Mineralogy.

a variety of orthoclase in which some of the potassium is replaced by barium.

Etymology

Origin of hyalophane

First recorded in 1850–55; hyalo- + -phane ( def. )

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.