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 , rf ]

  2. a radioactive transuranic element which has been synthesized

    [ Syn: rutherfordium , rf , 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 , rf ]

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