† ˈmixtibleObs.rare. [ad.mod.L. type *mixtibile, f. L. mixt-, ppl. stem of miscēre to mix: see -ible.] = mixtil. 1750tr.Leonardus' Mirr. Stones 57 The Magnet has Hardness, an iron Colour, and the like, proceeds from the Virtue of Mixtibles or the Elements.