Pros-ēn'ne-a-hē'dral, a.
a. [Gr. πρὸς, to, toward, ἐννέα, nine, and ἕδρα, side.] (Min.) Having nine faces on two adjacent parts; — said of certain crystals. [Obs.]
a. [Gr. πρὸς, to, toward, ἐννέα, nine, and ἕδρα, side.] (Min.) Having nine faces on two adjacent parts; — said of certain crystals. [Obs.]