a. Min. [f. as prec. + Gr. τομ- cutting, stem of τέμνειν to cut + -OUS.] Having a cleavage perpendicular to the axis.
1834. Allan, Min., 145. Axotomous Augite Spar.
1850. Ansted, Elem. Geol., 204. Arsenical Pyrites … An axotomous variety.
