esotropia vs cross-eye

esotropia and cross-eye both are nouns.

Word	Noun	Adjective	Verb	Adverb
esotropia	Yes	No	No	No
cross-eye	Yes	No	No	No

As nouns, esotropia and cross-eye are synonyms defined as:

esotropia and cross-eye: strabismus in which one or both eyes turn inward toward the nose

Other synonyms of esotropia include convergent strabismus, crossed eye.

esotropia (noun)	cross-eye (noun)
strabismus in which one or both eyes turn inward toward the nose	strabismus in which one or both eyes turn inward toward the nose