carbonium ion

American

[kahr-boh-nee-uhm] / kɑrˈboʊ ni əm /

noun

an organic ion containing a positively charged carbon atom (opposed to carbanion).

carbonium ion British

/ kɑːˈbəʊnɪəm /

noun

chem a positively charged organic ion in which most of the positive charge is localized on a carbon atom Compare carbanion

"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

Etymology

Origin of carbonium ion

carbon + -ium

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