osteologist

Kyūjitai form of 骨学: osteology

role

important, significant

importance, consequence, significance

hoof

a hoof / (figuratively, uncommon) an excellent horse, a fast horse / (rare) an ungulate, a hoofed animal

same, identical / common, similar

anyhow, anyway

(informal) The iteration mark 々, which indicates that the previous kanji ought to be repeated.