Medium

mē′di-um, n. the middle: the middle place or degree: any intervening means, instrument, or agency: the substance in which bodies exist, or through which they move: in spiritualism, the person through whom spirits are said to make themselves seen or heard:— pl. Mē′diums , or Mē′dia .— adjs. Mē′dium , mediocre; Medium is′tic , of or pertaining to spiritualistic mediums.— Circulating medium , money pa ing from hand to hand, as coin, bank-notes, . [L.]