The type of molecule that consists of a glycerol linked to three fatty acids is a triglyceride.

Here's a breakdown:

* Glycerol: A three-carbon alcohol molecule.

* Fatty acids: Long chains of hydrocarbons with a carboxyl group at one end.

* Triglyceride: Formed by the esterification reaction between glycerol and three fatty acid molecules.

Triglycerides are the most common type of fat found in both plants and animals. They serve as a primary energy source for the body and also provide insulation and protection for organs.