What is that may be known; capable of being discovered, understood, or ascertained. Thus mind and matter, as known or knowable, are only two different series of phenomena or qualities. Sir W. Hamilton called?

knowable — That may be known; capable of being discovered, understood, or ascertained. Thus mind and matter, as known or knowable, are only two different series of phenomena or qualities. Sir W. Hamilton. (Webster's 1913.)