lower jawbone vs mandibula

lower jawbone and mandibula both are nouns.

Word	Noun	Adjective	Verb	Adverb
lower jawbone	Yes	No	No	No
mandibula	Yes	No	No	No

As nouns, lower jawbone and mandibula are synonyms defined as:

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

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

lower jawbone (noun)	mandibula (noun)
the jaw in vertebrates that is hinged to open the mouth	the jaw in vertebrates that is hinged to open the mouth