chlorosis

[ klaw-roh-sis, kloh- ]
/ klɔˈroʊ sɪs, kloʊ- /

noun

an abnormally yellow color of plant tissues, resulting from partial failure to develop chlorophyll, caused by a nutrient deficiency or the activities of a pathogen.
Also called greensickness. Pathology. a benign type of iron-deficiency anemia in adolescent girls, marked by a pale yellow-green complexion.

Origin of chlorosis

First recorded in 1675–85; chlor-1 + -osis

Related forms

chlo·rot·ic [klaw-rot-ik, kloh-] /klɔˈrɒt ɪk, kloʊ-/, adjectivechlo·rot·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for chlorosis

British Dictionary definitions for chlorosis

chlorosis

/ (klɔːˈrəʊsɪs) /

noun

Also called: greensickness pathol a disorder, formerly common in adolescent girls, characterized by pale greenish-yellow skin, weakness, and palpitation and caused by insufficient iron in the body
botany a deficiency of chlorophyll in green plants caused by mineral deficiency, lack of light, disease, etc, the leaves appearing uncharacteristically pale

Derived Forms

chlorotic (klɔːˈrɒtɪk), adjective

Word Origin for chlorosis

C17: from chloro- + -osis
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

Medicine definitions for chlorosis

chlorosis

[ klə-rōsĭs ]

n.

A form of chronic anemia, primarily of young women, characterized by a greenish-yellow discoloration of the skin and usually associated with deficiency in iron and protein.chloremia

Related forms

chlo•rotic (-rŏtĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for chlorosis

chlorosis

[ klə-rōsĭs ]

The yellowing or whitening of normally green plant tissue because of loss or decreased production of chlorophyll, often as a result of disease, insufficient light, or inadequate sources of iron and magnesium.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.