IPA: //ˌpriːˈmɛʒərd//
KK: /priˈmɛʒərd/
Describing something that has been measured beforehand, often to ensure accuracy or consistency in a process.
The recipe called for premeasured ingredients to make cooking easier.
Premeasured → It is formed from "pre-" (meaning before) and "measure" (from Latin "metiri", meaning to measure) and "-ed" (a suffix indicating past action). The word "premeasured" means measured beforehand.
Think of measuring something 'before' ('pre-') it is used — that's why premeasured means it has already been measured.