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1. A radioactive transuranic element which has been synthesized
   - rutherfordium, unnilquadium, Unq, element 104, atomic number 104

1. 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
   - reticular formation
    
2. A substance produced by the hypothalamus that is capable of accelerating the secretion of a given hormone by the anterior pituitary gland
   - releasing factor, releasing hormone

Type of: chemical element, element, factor, neural net, neural network

Part of: brain stem, brainstem, brain-stem

Encyclopedia: RF