selective jamming vs jamming

selective jamming and jamming both are nouns.

Word	Noun	Adjective	Verb	Adverb
selective jamming	Yes	No	No	No
jamming	Yes	No	No	No

As nouns, jamming is a hypernym of selective jamming; that is, jamming is a word with a broader meaning than selective jamming:

selective jamming: electronic jamming of a specific channel or frequency
jamming: deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems

Other hypernyms of selective jamming include electronic jamming, jam.

selective jamming (noun)	jamming (noun)
electronic jamming of a specific channel or frequency	deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems