IPA: //kɑːˈbɔːrniəm//
KK: /kɑːrˈboʊniəm/
A type of organic ion that has a positive charge on a carbon atom and is formed by losing an electron.
The chemist studied the properties of carbonium ions in the laboratory.
Carbonium is derived from "carbon" (from Latin "carbo", meaning coal or charcoal) and the suffix "-ium" (used in chemistry to denote elements). The term refers to a hypothetical or theoretical element related to carbon.
Think of 'carbon' as the base element, and remember that 'carbonium' relates to a theoretical form of carbon, often discussed in chemistry.