Adipose tissue. If you mean being fat, that would be obese.
Obese
fat's scientific name is lipids.
another word for fattening is fat! it is easy to say that because it has fat in it Thanks for looking:):P
Fat
FAT
Another word for fat with 5 letters would be Obese. or over-the-top-horribly-obese
fat and chubby
fat
fat
Obis Horse
Fat has multiple definitions, but the scientific one would be dealing with biology since you used it as a noun. Lipids are another name for fats. A lipid are made of carbohydrates and proteins.
Fluffy