RF

Noun	1.	RF - a substance produced by the hypothalamus that is capable of accelerating the secretion of a given hormone by the anterior pituitary gland Synonyms: releasing factor, releasing hormone
	2.	Rf - a radioactive transuranic element which has been synthesized Synonyms: atomic number 104, element 104, Ku, kurchatovium, rutherfordium, unnilquadium, Unq
	3.	RF - a complex neural network in the central core of the brainstem; monitors the state of the body and functions in such processes as arousal and sleep and attention and muscle tone Synonyms: reticular formation