TOEFL metabolic Definition Relating to or involving the metabolism of an organism. Example "Exercise can boost your metabolic rate." Sign in to save TOEFL PDF — $25 ← messy metabolism → Study tips featuring "metabolic" TOEFL Academic Vocabulary: Study by Topic Related words TOEFL brighten GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate GRE abduct SAT abet GRE abhor GRE abide SAT abject TOEFL ablaze