endomorph

noun

1. A mineral, especially a crystal, enclosed within another
2. A person of the endomorphic physical type, characterised by big bones, round face, large trunk and thighs and a naturally high degree of body fat, especially around the midsection.

   “Some research shows that people with endomorph body types should aim to eat less fat and more protein. Other research has also found that some endomorphs are more sensitive to carbohydrates and the hormone insulin.”

3. A person having a theoretical body type with slow metabolism in which weight is gained easily, but fat levels are hard to reduce. Endomorphic bodybuilders tend to be the most massive.