desire vs sexual desire

desire and sexual desire both are nouns.

Word	Noun	Adjective	Verb	Adverb
desire	Yes	No	Yes	No
sexual desire	Yes	No	No	No

As nouns, sexual desire is a hyponym of desire; that is, sexual desire is a word with a more specific, narrower meaning than desire:

desire (noun)	sexual desire (noun)
an inclination to want things	a desire for sexual intimacy
the feeling that accompanies an unsatisfied state
something that is desired

desire (verb)	sexual desire (verb)
feel or have a desire for; want strongly
express a desire for
expect and wish