blood triglyceride level serum triglyceride level 2010-11-12T09:44:31Z mshimoyama CMO:0000360 VT:0002644 clinical_measurement_ontology The amount of triglycerides in a specified volume of serum, the clear liquid that separates from blood after it has clotted completely, i.e. blood plasma from which fibrinogen has been removed. Triglycerides are any of a group of lipids that are esters formed from one molecule of glycerol and three molecules of one or more fatty acids, are widespread in adipose tissue, and commonly circulate in the blood in the form of lipoproteins.