資料來源 : pyDict

無線電頻率

資料來源 : WordNet®

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}]