Found 1 items, similar to rf.
English → English (WordNet) Definition: RF RF n 1: a substance produced by the hypothalamus that is capable of accelerating the secretion of a given hormone by the anterior pituitary gland [syn: releasing factor, releasing hormone ] 2: a radioactive transuranic element which has been synthesized [syn: rutherfordium, kurchatovium, Ku, unnilquadium, Unq, element 104, atomic number 104] 3: 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 [syn: reticular formation]