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[klawr-ahyt, klohr-]
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  1. a group of minerals, hydrous silicates of aluminum, ferrous iron, and magnesium, occurring in green platelike crystals or scales.

Origin of chlorite1

First recorded in 1595–1605; chlor-1 + -ite1
Related formschlo·rit·ic [klaw-rit-ik, kloh-] /klɔˈrɪt ɪk, kloʊ-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for chloritic

Historical Examples

  • This marly deposit passes in its turn into beds containing green particles of a chloritic mineral, called the upper greensand.

    A Manual of Elementary Geology

    Charles Lyell.

  • The ore is found in a sort of chloritic slate and iron pyrites which follow the ledge all around.

  • Above the Chert beds is a band a few feet thick known as the Chloritic Marl, which shows a passage from sand to calcareous matter.

  • The green colour is due to a chloritic mineral; the red to haematite.

British Dictionary definitions for chloritic


  1. any of a group of green soft secondary minerals consisting of the hydrated silicates of aluminium, iron, and magnesium in monoclinic crystalline form: common in metamorphic rocks
Derived Formschloritic (klɔːˈrɪtɪk), adjective

Word Origin

C18: from Latin chlōrītis precious stone of a green colour, from Greek khlōritis, from khlōros greenish yellow


  1. any salt of chlorous acid, containing the monovalent ion ClO 2
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

chloritic in Medicine


  1. A salt of chlorous acid.
  2. The inorganic group ClO2 or a salt containing it.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

chloritic in Science


  1. A usually green or black, flaky mineral that looks like mica. Chlorite is either monoclinic or triclinic and occurs in low-grade metamorphic rocks (rocks that have undergone little metamorphism). It often forms by the alteration of dark minerals (often rich in iron and magnesium) during metamorphism. Chemical formula: (Mg,Fe,Al)6(Si,Al)4O10(OH)8.


  1. A salt containing the group ClO2.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.