IPA: /ˈvɒmɪtə/
KK: /ˈvɑːmɪtər/
A person who expels the contents of their stomach through the mouth, often due to illness or nausea.
After eating the spoiled food, he became a vomiter and felt very sick.
Vomiter → It is formed from "vomere" (meaning to discharge contents from the stomach) and "-er" (meaning a person who). The word "vomiter" refers to a person who vomits or discharges contents from the stomach.
Think of someone who 'discharges' ('vomere') contents from their stomach — that's why a vomiter is a person who vomits.