Also found in: Wikipedia.
re·leas·ing fac·tors (RF),
1. any substance, usually of hypothalamic origin, capable of accelerating the rate of secretion of a given hormone by the anterior pituitary gland;
2. factors required in the termination phase of either RNA biosynthesis or protein biosynthesis. Synonym(s): termination factor
3. colloquial shortened form for the HMG-CoA reductase inhibitors used as antihyperlipidemic agents, whose generic names end with the suffix statin. Synonym(s): statins