bu·tyr·om·e·ter \ˌbyüd.əˈräməd.ə(r)\noun (-s) Etymology: International Scientific Vocabulary butyr- + -meter : an instrument for determining the amount of butterfat in dairy products (as milk) • bu·tyr·o·met·ric\|byüd.ə(ˌ)rō|me.trik, -_rə|m-\adjective