1. (noun) releasing factor, releasing hormone, RF
a substance produced by the hypothalamus that is capable of accelerating the secretion of a given hormone by the anterior pituitary gland
Synonyms: hypothalamic releasing factor, releasing hormone, unnilquadium, element 104, reticular formation, hypothalamic releasing hormone, releasing factor, rutherfordium, atomic number 104
2. (noun) rutherfordium, Rf, unnilquadium, Unq, element 104, atomic number 104
a radioactive transuranic element which has been synthesized
Synonyms: reticular formation, element 104, releasing factor, unnilquadium, rutherfordium, atomic number 104, releasing hormone
3. (noun) reticular formation, RF
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
Synonyms: reticular formation, element 104, atomic number 104, unnilquadium, rutherfordium, releasing factor, releasing hormone
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Synonyms and Antonyms of RF 
