Medical Definition of phosphatidic acid
: any of several acids (RCOO)2C3H5OPO3H2 that are formed from phosphatides by partial hydrolysis and that yield on hydrolysis two fatty-acid molecules RCOOH and one molecule each of glycerol and phosphoric acid
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
Ask the Editors
Brand Name Vocabulary Quiz
You’re gonna need some moxie to ace this quiz
Commonly Confused Words Quiz
Take a (break/brake) and (pore/pour) over this (c...
How Strong Is Your Vocabulary?
Test your vocabulary with our 10-question quiz!
Spelling Bee Quiz
Can you outdo past winners of the National Spelli...