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zwitterion

[ tsvit-er-ahy-uhn ]
/ ˈtsvɪt ərˌaɪ ən /
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noun Physical Chemistry.

an ion with both a positive and a negative charge.

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Origin of zwitterion

<German Zwitterion (1897), equivalent to Zwitter hybrid, hermaphrodite + Ionion
zwit·ter·i·on·ic [tsvit-er-ahy-on-ik], /ˌtsvɪt ər aɪˈɒn ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for zwitterion

zwitterion
/ (ˈtsvɪtərˌaɪən) /

noun

chem an ion that carries both a positive and a negative charge
zwitterionic (ˌtsvɪtəraɪˈɒnɪk), adjective
C20: from German Zwitter hermaphrodite + ion
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

Medical definitions for zwitterion

zwitterion
[ zwĭtər-ī′ən, swĭt-, tsvĭt- ]

n.

dipolar ion
zwit′ter•i•onic (-ī-ŏnĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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