libido vs sexual desire

libido and sexual desire both are nouns.

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

As nouns, sexual desire is a hypernym of libido; that is, sexual desire is a word with a broader meaning than libido:

Other hypernyms of libido include concupiscence, eros, physical attraction.

libido (noun)	sexual desire (noun)
(psychoanalysis) a Freudian term for sexual urge or desire	a desire for sexual intimacy