Innominate bone

/ɪnnˈɒmɪnˌeɪt bˈəʊn/

/ɪnnˈɑːmᵻnˌeɪt bˈoʊn/

Innominate bone

large flaring bone forming one half of the pelvis; made up of the ilium and ischium and pubis

synonyms : hipbone