slide vs cover glass

slide and cover glass both are nouns.

Word	Noun	Adjective	Verb	Adverb
slide	Yes	No	Yes	No
cover glass	Yes	No	No	No

slide (noun)	cover glass (noun)
the act of moving smoothly along a surface while remaining in contact with it	a small and very thin piece of glass used to cover the specimen on a microscope slide
sloping channel through which things can descend
a transparency mounted in a frame; viewed with a slide projector
a small flat rectangular piece of glass on which specimens can be mounted for microscopic study
plaything consisting of a sloping chute down which children can slide
(music) rapid sliding up or down the musical scale
(geology) the descent of a large mass of earth or rocks or snow etc.

slide (verb)	cover glass (verb)
to pass or move unobtrusively or smoothly
move obliquely or sideways, usually in an uncontrolled manner
move smoothly along a surface