elektromagnetilise või akustilise laineenergia muundamine muuks energiavormiks, näiteks soojuseks, koostoimes ainega
gaasi, heli või valguse neeldumine mingis materjalis
conversion of electromagnetic or acoustic wave energy into another form of energy, for instance heat, by interaction with matter
absorption of particles of gas or liquid in liquid or solid material or light or other electromagnetic radiation by a material
how matter (typically electrons bound in atoms) takes up a photon's energy — and so transforms electromagnetic energy into internal energy of the absorber (for example, thermal energy)
Elektromagnetilise kiirguse neeldumise märkimisväärne mõju on kiirguse sumbumine, mis on valguslainete intensiivsuse järkjärguline vähenemine nende levimisel läbi keskkonna.
A notable effect of the absorption of electromagnetic radiation is attenuation of the radiation; attenuation is the gradual reduction of the intensity of light waves as they propagate through the medium.