RHOMBOHEDRAL
Rhom`bo*he"dral, a. (Geom. & Crystallog.)
Defn: Related to the rhombohedron; presenting the form of a rhombohedron, or a form derivable from a rhombohedron; relating to a system of forms including the rhombohedron and scalenohedron. Rhombohedral iron ore (Min.) See Hematite. — Rhombohedral system (Crystallog.), a division of the hexagonal system embracing the rhombohedron, scalenohedron, etc.
RHOMBOHEDRIC
Rhom`bo*hed"ric, a. (Geom. & Crystallog.)
Defn: Rhombohedral.
RHOMBOHEDRON
Rhom`bo*he"dron, n. Etym: [NL., fr. Gr. (Geom. & Crystallog.)
Defn: A solid contained by six rhomboids; a parallelopiped.
RHOMBOID
Rhom"boid, n. Etym: [Gr. rhomboïde.] (Geom.)
Defn: An oblique-angled parallelogram like a rhomb, but having only the opposite sides equal, the length and with being different.
RHOMBOID
Rhom"boid, a.
Defn: Same as Rhomboidal.