IPA: //ˌtɛtrəˈklɔːrɪd//
KK: /tɛtrəˈklɔrɪd/
A chemical substance that has four chlorine atoms in each molecule.
Tetrachloride is often used in industrial applications and chemical synthesis.
Tetrachloride → It is formed from "tetra-" (from Greek "tetra", meaning four) and "chloride" (from Greek "chloros", meaning green, referring to chlorine). The word "tetrachloride" refers to a chemical compound containing four chlorine atoms.
Think of 'tetra-' meaning four, and remember that 'tetrachloride' is a compound with four chlorine atoms.