gyrostabiliser vs stabiliser

gyrostabiliser and stabiliser both are nouns.

Word	Noun	Adjective	Verb	Adverb
gyrostabiliser	Yes	No	No	No
stabiliser	Yes	No	No	No

As nouns, stabiliser is a hypernym of gyrostabiliser; that is, stabiliser is a word with a broader meaning than gyrostabiliser:

gyrostabiliser: a stabilizer consisting of a heavy gyroscope that spins on a vertical axis; reduces side-to-side rolling of a ship or plane
stabiliser: a device for making something stable

Other hypernyms of gyrostabiliser include stabilizer.

gyrostabiliser (noun)	stabiliser (noun)
a stabilizer consisting of a heavy gyroscope that spins on a vertical axis; reduces side-to-side rolling of a ship or plane	a device for making something stable