n Any of a family of plasticizers derived from citric acid, HO₂CCH₂C(OH)(CO₂H)CH₂CO₂H, noted for their low order of toxicity. Included citrates are: triethyl, tri(2-ethylhexyl), tricyclohexyl, tri-n-butyl, acetyl triethyl, acetyl tri-n-butyl, acetyl tri-n-octyl, n-decyl, and acetyl tri(2-ethylhexyl).