fibreoptics vs fibre optics

fibreoptics and fibre optics both are nouns.

Word	Noun	Adjective	Verb	Adverb
fibreoptics	Yes	No	No	No
fibre optics	Yes	No	No	No

As nouns, fibreoptics and fibre optics are synonyms defined as:

fibreoptics and fibre optics: the transmission of light signals via glass fibers

Other synonyms of fibreoptics include fiber optics, fiberoptics.

fibreoptics (noun)	fibre optics (noun)
the transmission of light signals via glass fibers	the transmission of light signals via glass fibers