Heterotomous, het-er-ot′o-mus, adj. (min.) having a cleavage different from the common variety. [Gr. heteros, other, tomē, a cutting.]

Heterotopy, het-e-rot′o-pi, n. misplacement.—adj. Heterot′opous. [Gr. heteros, other, topos, place.]

Heterotrophy, het-e-rot′rof-i, n. (bot.) an abnormal mode of obtaining nutrition. [Gr. heteros, other, trophē, food.]

Heterousian, het′e-rōō-zi-an, n. and adj. one who believes the Father and Son to be unlike in substance or essence:—opposed to Homoöusian: an Arian.—Also Heteroöu′sian. [Gr. heteros, other, ousia, substance, einai, to be.]

Hetman, het′man, n. the title of the head or general of the Cossacks. [Russ.]

Heugh, Heuch, hūh, n. (Scot.) a crag, a glen with steep sides. [See How, a hill.]

Heulandite, hū′lan-dīt, n. a mineral of the zeolite group—from H. Heuland, an English mineralogist.

Heuristic, hū-ris′tik, adj. serving to find out.—n. the art of discovery in logic: the method in education by which the pupil is set to find out things for himself. [From the root of Gr. heuriskein, to find; also spelt euriskein. See Eureka.]

Hew, hū, v.t. to cut with any sharp instrument: to cut in pieces: to shape.—v.i. to deal blows with a cutting instrument:—pa.p. hewed, or hewn.—n. (Spens.) hacking.—n. Hew′er, one who hews. [A.S. héawan; Ger. hauen.]

Hexachord, hek′sa-kord, n. a diatonic series of six notes, having a semitone between the third and fourth. [Gr. hex, six, chordē, a string.]