metabolic process me·ta·bo·licprocess uncommon noun 1. the organic processes (in a cell or organism) that are necessary for life Synonymsmetabolismmetabolic processmetastasis Related words Word family metabolize Broader terms organic process Narrower terms respirationbasal metabolic ratebasal metabolismfat metabolismglycolysis Part of anabolismcatabolismKrebs cycle WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.