cosmotron vs synchrotron

cosmotron and synchrotron both are nouns.

Word	Noun	Adjective	Verb	Adverb
cosmotron	Yes	No	No	No
synchrotron	Yes	No	No	No

As nouns, synchrotron is a hypernym of cosmotron; that is, synchrotron is a word with a broader meaning than cosmotron:

cosmotron: a large proton synchrotron; uses frequency modulation of an electric field to accelerate protons
synchrotron: cyclotron in which the electric field is maintained at a constant frequency

cosmotron (noun)	synchrotron (noun)
a large proton synchrotron; uses frequency modulation of an electric field to accelerate protons	cyclotron in which the electric field is maintained at a constant frequency