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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 RF
 無線電頻率

From: WordNet (r) 2.0

 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]