Rf (Noun)
Meaning 1
A radioactive transuranic element which has been synthesized.
Classification
Nouns denoting substances.
Synonyms
Hypernyms
Meaning 2
A substance produced by the hypothalamus that is capable of accelerating the secretion of a given hormone by the anterior pituitary gland.
Classification
Nouns denoting substances.
Synonyms
Hypernyms
Hyponyms
Meaning 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.
Classification
Nouns denoting body parts.