sacralPronunciation: /ˈseɪkr(ə)l, ˈsak-/Definition of sacral adjective [attributive] 1relating to sacred rites or symbols:sacral horns of a Minoan type 2 Anatomy relating to the sacrum: the first and second sacral vertebraeDerivatives sacrality noun sense 1.sacral in other Oxford dictionaries Definition of sacral in the US English dictionary