tributyrin

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The triglyceride of the straight-chain isomer of butyric acid, C₁₅H₂₆O₆, naturally present in butter and used as a flavoring and plasticizer.

from The Century Dictionary.

• noun A colorless compound, C₃H₅(OCOCH₂CH₂CH₃)₃, contained in cows’ butter and formed from glycerol and butyric acid. It boils at 285° C.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun organic chemistry The triglyceride of butyric acid; butyrin

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a bitter oily triglyceride of butyric acid; a form of butyrin