epicanthic fold vs epicanthus

epicanthic fold and epicanthus both are nouns.

Word	Noun	Adjective	Verb	Adverb
epicanthic fold	Yes	No	No	No
epicanthus	Yes	No	No	No

As nouns, epicanthic fold and epicanthus are synonyms defined as:

epicanthic fold and epicanthus: a vertical fold of skin over the nasal canthus; typical for many east Asian peoples; sometimes occurs in Down's syndrome

epicanthic fold (noun)	epicanthus (noun)
a vertical fold of skin over the nasal canthus; typical for many east Asian peoples; sometimes occurs in Down's syndrome	a vertical fold of skin over the nasal canthus; typical for many east Asian peoples; sometimes occurs in Down's syndrome