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zwiterrion

Scientific  
/ zwĭt′ər-ī′ən,swĭt′-,tsvĭt′- /

  1. A molecule, especially an amino acid, containing a positively charged ion at one end and a negatively charged ion at the other.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.