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anionic detergentA detergent whose hydrophilic activity hinges on an anionic group. Fatty acids are natural anionic detergents (AD), but are neither used as detergents nor function as such in biological systems; the main synthetic ADs are aliphatic sulphate esters (e.g., sodium dodecyl sulphate).
A natural or synthetic chemical substance such as a soap, which does not ionize when placed in water..
See also: detergent
an·i·on·ic de·ter·gent(anī-onik dĕ-tĕrjĕnt)
Cleansing agent that carries a net negative charge on a lipidlike molecule and exerts a limited antibacterial effect (e.g,. a soap).