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 (PITOCIN) Description. Oxytocin means rapid birth.. It is a synthetic hormone named for the natural posterior pituitary hormone. It stimulates uterine smooth muscle contractions indirectly and helps expedite the normal contractions of spontaneous labor.As in all significant uterine contractions, there is a transient reduction in uterine blood flow.t stimulates uterine smooth muscle contractions indirectly and helps expedite the normal contractions of spontaneous labor. As in all significant uterine contractions, there is a transient reduction in uterine blood flow.