opacity(noun) the phenomenon of not permitting the passage of electromagnetic radiation. opacity, opaqueness(noun) incomprehensibility resulting from obscurity of meaning. opacity, opaqueness(noun) the quality of being opaque to a degree; the degree to which something reduces the passage of light.
â¢ OXYTOCIC DRUG (noun). The noun OXYTOCIC DRUG has 1 sense: 1. a drug that induces labor by stimulating contractions of the muscles of the uterus. Familiarity information: OXYTOCIC DRUG used as a noun is very rare. OXYTOCIC DRUG (noun). The noun OXYTOCIC DRUG has 1 sense: 1. a drug that induces labor by stimulating contractions of the muscles of the uterus. Familiarity information: OXYTOCIC DRUG used as a noun is very rare.
Oxytocin is one of the two major hormones secreted from the posterior lobe of the pituitary gland. he posterior pituitary itself largely comprises endings of nerves whose cell bodies lie in the brain in the hypothalamus. Oxytocin is a relatively small peptide hormone, composed of only 9 amino acids.It is synthesized in nerve cells in the hypothalamus in the form of a larger, precursor molecule, which is transported down the nerve fibres through the pituitary stalk to the posterior lobe.xytocin is secreted by the pituitary gland. Specifically, it is from the posterior pituitary, with posterior meaning the back or behind the pituitary gland.