'Triglyceride' definitions:

Definition of 'triglyceride'

(from WordNet)
noun
Glyceride occurring naturally in animal and vegetable tissues; it consists of three individual fatty acids bound together in a single large molecule; an important energy source forming much of the fat stored by the body

Definition of 'Triglyceride'

From: GCIDE
  • Triglyceride \Tri*glyc"er*ide\, n. [Pref. tri- + glyceride.] (Chem.) A glyceride formed by the replacement of three hydrogen atoms in glycerin by acid radicals. [1913 Webster]