Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun rf

3 senses of rf

Sense 1
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)
       => factor -- (anything that contributes causally to a result; "a number of factors determined the outcome")

Sense 2
rutherfordium, Rf, unnilquadium, Unq, element 104, atomic number 104 -- (a radioactive transuranic element which has been synthesized)
       => chemical element, element -- (any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter)

Sense 3
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)
       => neural network, neural net -- (any network of neurons or nuclei that function together to perform some function in the body)