Final answer:
18:3w3 refers to an 18-carbon fatty acid with 3 double bonds, positioned at omega-3 carbon.
Step-by-step explanation:
Based on the accepted nomenclature of fatty acids, 18:3w3 refers to an 18-carbon fatty acid with three double bonds, with the third double bond located at the omega-3 carbon position.
This fatty acid is known as an omega-3 fatty acid and is a type of polyunsaturated fatty acid. Examples of omega-3 fatty acids include alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).
Omega-3 fatty acids are essential fatty acids that the body cannot produce on its own and they are known to have numerous health benefits, such as reducing the risk of heart disease and lowering inflammation.