microcircuit vs integrated circuit

microcircuit and integrated circuit both are nouns.

Word	Noun	Adjective	Verb	Adverb
microcircuit	Yes	No	No	No
integrated circuit	Yes	No	No	No

As nouns, microcircuit and integrated circuit are synonyms defined as:

microcircuit and integrated circuit: a microelectronic computer circuit incorporated into a chip or semiconductor; a whole system rather than a single component

microcircuit (noun)	integrated circuit (noun)
a microelectronic computer circuit incorporated into a chip or semiconductor; a whole system rather than a single component	a microelectronic computer circuit incorporated into a chip or semiconductor; a whole system rather than a single component