Fats consist of a wide group of compounds that are generally soluble in organic solvents and generally insoluble in water. Chemically, fats are triglycerides, triesters of glycerol and any of several fatty acids. Fats may be either solid or liquid at room temperature, depending on their structure and composition. Although the words "oils", "fats", and "lipids" are all used to refer to fats, "oils" is usually used to refer to fats that are liquids at normal room temperature, while "fats" is usually used to refer to fats that are solids at normal room temperature. "Lipids" is used to refer to both liquid and solid fats, along with other related substances, usually in a medical or biochemical context. The word "oil" is also used for any substance that does not mix with water and has a greasy feel, such as petroleum (or crude oil), heating oil, and essential oils, regardless of its chemical structure.
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Famous quotes containing the word fat:
“I find no sweeter fat than sticks to my own bones.”
—Walt Whitman (18191892)
“Marty: Im just a fat little man. A fat ugly man.
Mrs. Pilletti: Youre not ugly.
Marty: Im ugly! Im ugly! Im ugly!”
—Paddy Chayefsky (19231981)
“A fat stomach sticks out too far, Monsieur La Rue. It prevents you from looking down and seeing what is going on around you.”
—Norman Reilly Raine (18951971)