dipleidoscope Definition

catopter, stauroscope, perspicil, optical device, biprism, nicol prism, schmidt telescope, ophthalmometer, wollaston prism, anaclastic, polemoscope, cheval glass, sectant, demicircle, hyalograph, claude lorraine glass, altiscope, scioptics, anaclastics, spherical angle, macrometer, phakoscope, angle of refraction, optical instrument, pier glass, wire glass, coelostat, opeidoscope, dioptrics, semilens, teinoscope, macropinacoid, map projection, armil, scotoscope, pseudoscope, dichroscope, zograscope, optigraph, stereomonoscope, glass, hemiholohedral, brachypinacoid, macroprism, vitrifacture, bisectrix, clinopinacoid, cover slip, orthoscope, angulometer, stormglass, total internal reflection, dioptometer, spectrohelioscope, spherograph, catacaustic, terrestrial telescope, chromascope, leucoscope, potichomania, phantascope, flint glass, clinometric, chromatrope, iriscope, holophote, gyroidal, mirror, artificial horizon, cosmolabe, spherometer, angle of reflection, optical rotation, plagihedral, optical phenomenon, helicograph, volumescope, heliometer, optometer, dynactinometer, reclination, paraselene, perspectograph, backstaff, transilluminate, lucimeter, angle of incidence, sideroscope, field of vision, diacaustic, pier table, opsiometer, optical activity, kaleidophone, declinator, holohedral, dynameter, macrodome, spheroconic, prismatoid,