dermatographia

[ der-mat-uh-graf-ee-uh, dur-muh-tuh- ]
/ dərˌmæt əˈgræf i ə, ˌdɜr mə tə- /

noun Medicine/Medical.

a condition in which touching or lightly scratching the skin causes raised, reddish marks.
Also der·ma·tog·ra·phism [dur-muh-tog-ruh-fiz-uh m] /ˌdɜr məˈtɒg rəˌfɪz əm/, dermographia, dermographism.

Origin of dermatographia

From New Latin, dating back to 1850–55; see origin at dermato-, -graphy
Related formsder·mat·o·graph·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for dermatographism

dermatographism

[ dûr′mə-tŏgrə-fĭz′əm ]

n.

A form of urticaria in which skin welts develop along the lines where one has been stroked or scratched.dermographia dermographism
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.