thighbone vs femoris

thighbone and femoris both are nouns.

Word	Noun	Adjective	Verb	Adverb
thighbone	Yes	No	No	No
femoris	Yes	No	No	No

As nouns, thighbone and femoris are synonyms defined as:

thighbone and femoris: the longest and thickest bone of the human skeleton; extends from the pelvis to the knee

Other synonyms of thighbone include femur.

thighbone (noun)	femoris (noun)
the longest and thickest bone of the human skeleton; extends from the pelvis to the knee	the longest and thickest bone of the human skeleton; extends from the pelvis to the knee