disperse vs backscatter

disperse and backscatter both are verbs.

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

As verbs, backscatter is a hyponym of disperse; that is, backscatter is a word with a more specific, narrower meaning than disperse:

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

disperse (verb)	backscatter (verb)
cause to separate	scatter (radiation) by the atoms of the medium through which it passes
cause to become widely known
distribute loosely
separate (light) into spectral rays
move away from each other
to cause to separate and go in different directions