/pros'teuh glan"din/ , n.
1. Biochem. any of a class of unsaturated fatty acids that are involved in the contraction of smooth muscle, the control of inflammation and body temperature, and many other physiological functions.
2. Pharm. any commercial preparation of this substance.
[ 1935-40; PROSTA(TE) + GLAND 1 + -IN 2 ]