Lipid and Triglyceride

Lipid noun - An oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates).

Triglyceride and lipid are semantically related. In some cases you can use "Triglyceride" instead a noun "Lipid".

Triglyceride 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.

Lipid and triglyceride are semantically related. You can use "Lipid" instead a noun "Triglyceride".