FAS

FAs is an acronym with several distinct meanings, depending on the context. In biochemistry and nutrition, fatty acids are carboxylic acids with long hydrocarbon chains. They can be saturated or unsaturated, and they are fundamental constituents of lipids such as triglycerides and phospholipids. Fatty acids are important in energy storage, cell membrane structure, and signaling. In nutrition, some fatty acids are essential because the body cannot synthesize them, requiring intake from foods such as fish, seeds, nuts, and vegetable oils. In laboratory contexts, FA or FAs may refer to a specific fatty acid under discussion.

In accounting and finance, fixed assets (often abbreviated FA or FAs in plural contexts) refer to long-term tangible assets used in the operation of a business. Examples include land, buildings, machinery, and equipment. Fixed assets are capitalized on the balance sheet and depreciated over their expected useful lives, which affects profit, taxation, and asset management. Revaluation, impairment, and disposals are part of fixed-asset accounting and audit considerations.

Beyond these, FAs can denote other terms across disciplines, such as finite automata in computer science (plural FAs for multiple automata) or names of organizations where the acronym includes FA. The intended meaning should be inferred from context.