tithonicity Definition

tithonic, actinism, tithonometer, tithonographic, diactinic, diradiation, actinotherapy, spectral type, spectrohelioscope, calorescence, pyrheliometer, lucimeter, actinometry, scintillation counter, actinic radiation, cytophotometric, cytophotometer, actinology, microwave spectroscopy, photovoltaic effect, magnetograph, exposure meter, compton effect, chemoluminescence, photomagnetic, photodynamics, discharge tube, optogram, luminous energy, light meter, infrared lamp, adiactinic, dynactinometer, physical phenomenon, photodisintegration, heat ray, radiant energy, nuclear chemistry, spectroheliograph, actinochemistry, chromascope, otheoscope, radiation pyrometer, arc lamp, glow discharge, selenium cell, photonuclear, electron gun, stauroscope, femtochemistry, thermion, nuclear reaction, optography, magnetochemistry, photographometer, electric eye, electric charge, electric current, beta radiation, line spectrum, corposant, background radiation, zeeman effect, optical phenomenon, galvanoscope, nuclear fusion, sensitometer, absorption band, optical device, alpha radiation, optical rotation, herapathite, electron spin resonance, beta particle, ultramicroscope, photofission, inductometer, photoscope, microdensitometer, source of illumination, holophote, anaclastics, holophotal, thermal neutron, flame test, triboelectricity, anacamptics, periodic law, gas mantle, tyndall effect, meteorometer, beamless, radioluminescence, counter tube, wollaston prism, photomagnetism, diacaustic, hyperfine structure, mean free path, thermoelectrometer,