Monoclinic vs. Orthorhombic — What's the Difference?

Of or relating to three unequal crystal axes, two of which intersect obliquely and are perpendicular to the third.

Of or relating to a crystalline structure of three mutually perpendicular axes of different length.

(crystallography) Having three unequal axes with two perpendicular and one oblique intersections.

(crystallography) Having three unequal axes at right angles.

Having one oblique intersection; - said of that system of crystallization in which the vertical axis is inclined to one, but at right angles to the other, lateral axis. See Crystallization.

Noting the system of crystallization which has three unequal axes at right angles to each other; trimetric. See Crystallization.

Having three unequal crystal axes with one oblique intersection;