Plā'gi-hē'dral, a.
a. [Gr. πλάγιος, oblique, and ἕδρα, base, seat.] (Crystal.) Having an oblique spiral arrangement of planes, as levogyrate and dextrogyrate crystals. Dana.
a. [Gr. πλάγιος, oblique, and ἕδρα, base, seat.] (Crystal.) Having an oblique spiral arrangement of planes, as levogyrate and dextrogyrate crystals. Dana.