plosive vs glottal stop

plosive and glottal stop both are nouns.

Word	Noun	Adjective	Verb	Adverb
plosive	Yes	No	No	No
glottal stop	Yes	No	No	No

As nouns, glottal stop is a hyponym of plosive; that is, glottal stop is a word with a more specific, narrower meaning than plosive:

plosive: a consonant produced by stopping the flow of air at some point and suddenly releasing it
glottal stop: a stop consonant articulated by releasing pressure at the glottis; as in the sudden onset of a vowel

Other hyponyms of plosive include labial stop, glottal catch, glottal plosive, click, suction stop.

plosive (noun)	glottal stop (noun)
a consonant produced by stopping the flow of air at some point and suddenly releasing it	a stop consonant articulated by releasing pressure at the glottis; as in the sudden onset of a vowel