IPA: /prəʊˈθɔːræks/
KK: /proʊˈθɔræks/
The front part of an insect's body that is located just behind the head and supports the first pair of legs.
The prothorax of the beetle is hard and protects its delicate wings.
Prothorax → It is formed from "pro-" (meaning before) and "thorax" (from Greek "thorax", meaning chest or breastplate). The word "prothorax" refers to the first segment of the thorax in insects, located before the main body segment.
Think of 'pro-' meaning 'before' and 'thorax' referring to the 'chest' — the prothorax is the part of the body that is located before the main chest area.