Leucoxene \Leu*cox"ene\ (l[-u]*k[o^]ks"[=e]n), n. [Leuco- + Gr.
xe`nos stranger.] (Min.)
A nearly opaque white mineral, in part identical with
titanite, observed in some igneous rocks as the result of the
alteration of titanic iron.
[1913 Webster] leukemia