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n. Any of a group of potent hormonelike substances that are produced in various mammalian tissues, are derived from arachidonic acid, and mediate a wide range of physiological functions, such as control of blood pressure, contraction of smooth muscle, and modulation of inflammation.

n. Any of a group of naturally occurring lipids derived from the C20 acid prostanoic acid; they have a number of physiological functions and may be considered to be hormones.

n. a potent substance that acts like a hormone and is found in many bodily tissues (and especially in semen); produced in response to trauma and may affect blood pressure and metabolism and smooth muscle activity

"Also, semen has a substance in it called prostaglandin, which is the same thing your body makes to soften your cervix."

autacoid    autocoid   

biosynthetic    ceramide    cyclooxygenase    glutathione    monoamine