IPA: //sʌlˈfɪnɪl//
KK: /sʌlˈfɪnɪl/
A chemical group consisting of one sulfur atom bonded to an oxygen atom, often found in various chemical compounds.
The compound contains a sulfinyl group, which contributes to its reactivity.
Sulfinyl is formed from "sulfur" (from Latin *sulfur*, meaning sulfur) and "-inyl" (a suffix used in organic chemistry to denote a functional group). The word refers to a functional group containing sulfur, specifically in the form of a sulfur atom bonded to two other atoms or groups.
Think of 'sulfur' as the key element in 'sulfinyl', which indicates a group containing sulfur.