backscatter vs scatter

backscatter is not a noun while scatter is a noun.

Word	Noun	Adjective	Verb	Adverb
backscatter	No	No	Yes	No
scatter	Yes	No	Yes	No

As verbs, scatter is a hypernym of backscatter; that is, scatter is a word with a broader meaning than backscatter:

backscatter: scatter (radiation) by the atoms of the medium through which it passes
scatter: cause to separate

Other hypernyms of backscatter include break up, disperse.

backscatter (noun)	scatter (noun)
	the act of scattering
	a haphazard distribution in all directions

backscatter (verb)	scatter (verb)
scatter (radiation) by the atoms of the medium through which it passes	cause to separate
	distribute loosely
	sow by scattering
	move away from each other
	to cause to separate and go in different directions
	strew or distribute over an area