mandibula vs jowl

mandibula and jowl both are nouns.

Word	Noun	Adjective	Verb	Adverb
mandibula	Yes	No	No	No
jowl	Yes	No	No	No

As nouns, mandibula and jowl are synonyms defined as:

mandibula and jowl: the jaw in vertebrates that is hinged to open the mouth

Other synonyms of mandibula include jawbone, lower jaw, lower jawbone, mandible, mandibular bone, submaxilla.

mandibula (noun)	jowl (noun)
the jaw in vertebrates that is hinged to open the mouth	the jaw in vertebrates that is hinged to open the mouth
	a fullness and looseness of the flesh of the lower cheek and jaw (characteristic of aging)