cataplexy definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
noun pl. cat·a·plex·ies
A sudden loss of muscle tone and strength, usually caused by an extreme emotional stimulus.
Origin: From Greek kataplēxis, fixation (of the eyes), from kataplēssein, to astound, terrify : kata-, intensive pref.; see cata- + plēssein, plēk-, to strike; see plāk-2 in Indo-European roots.
- catˌa·plecˈtic adjective
cataplexy - Medical Definition
A sudden loss of muscle tone and strength, usually caused by an intense emotional stimulus.
- cataplectic adjective