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phthalin

American

[thal-in, fthal-] / ˈθæl ɪn, ˈfθæl- /

noun

Chemistry.

any of a group of compounds obtained by the reduction of the phthaleins.

Etymology

Origin of phthalin

First recorded in 1870–75; (na)phthal(ene) + -in ²

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.