Definify.com
Webster 1913 Edition
Diatomous
Di-at′o-mous
,Adj.
[Gr.
διάτομοσ
cut through, fr. διατέμνειν
to cut through; διά
through + τέμνειν
to cut. Cf. Diatom
.] (Min.)
Having a single, distinct, diagonal cleavage; – said of crystals.
Mohs.