demicircle Definition

spherograph, angulometer, bow compass, beam compass, interior angle, exterior angle, range pole, central angle, semimajor axis, optigraph, arcograph, astrocompass, plane figure, spherical angle, cosmolabe, major axis, curvograph, set square, magnetic dip, protractor, octangle, regular polygon, anglemeter, incentre, plane angle, acute triangle, dipleidoscope, clinometric, declinator, conic section, pantometer, polar equation, subtense, amblygon, obtuse triangle, coelostat, heliometer, angle of refraction, magnetic north, solid angle, right triangle, orthocentre, angle of incidence, minor axis, compass, holometer, angle, sexangular, bisectrix, macrometer, ophthalmometer, angular distance, chorograph, spherometer, almucantar, reclination, outcompass, sexangled, helicograph, tacnode, cathetometer, optical device, round angle, circle, spheroconic, curvilinead, backstaff, armil, ellipsoid of revolution, cyclograph, dygogram, circumferentor, schmidt telescope, decussative, lissajous figure, optical instrument, perspectograph, try square, angle of reflection, y level, roundure, dynameter, semiaxis, trioctile, complementary angle, biangular, compass rose, tangent plane, hendecagon, macropinacoid, teinoscope, orthoscope, small circle, circumnutate, terrestrial telescope, map projection, straight angle, scalene triangle, clinodiagonal, field of vision,