(n.) An instrument for measuring angles, especially the angles of crystals, or the inclination of planes.

ascender astrolabe azimuth circle azimuth compass back bank bastard type beard belly bevel protractor bevel square beveled bezel bias biased black letter body cap capital case chute clinometer counter descender easy slope em en face fat-faced type feet fleam font gentle slope glacis goniometer grade gradient graphometer groove hanging gardens helicline hillside inclination incline inclined plane italic launching ramp letter ligature logotype lower case majuscule minuscule nick pantometer pi pica pitch point print protractor quadrant radiogoniometer ramp roman sans serif scarp script sextant shank shelving beach shoulder side slanted slanting slope small cap small capital stamp steep slope stem stiff climb talus theodolite transit transit circle transit instrument transit theodolite type type body type class type lice typecase typeface typefounders typefoundry upper case