The quality of being absorptive; absorptiveness. / (thermodynamics) The fraction of radiation absorbed by a surface to the total radiation incident on the surface.

Any substance that absorbs.

plural of absorptivity

plural of absorptive

In an absorptive way.

(physics) The retention of polarization of a dielectric material after removal of the electric field.

Preoccupation with oneself to the exclusion of everything else.

(physics, chemistry) One of any number of ranges of wavelengths of electromagnetic radiation absorbed by a substance.

(physics) A measure of the absorption of electromagnetic radiation as it passes through a specific substance; the fraction of incident radiation absorbed by unit mass or unit thickness; absorptivity.

(physics, astronomy) A spectral line that corresponds to the absorption of electromagnetic radiation at a specific wavelength; the pattern of such lines is characteristic of specific atoms or molecules in the path of the radiation.