Science / Chemistry / Absorption: Compare with adsorption and sorption. 1. Penetration of molecules into the bulk of a solid or liquid, forming either a solution or compound. Absorption can be a chemical process (a strong solution of naoh absorbs CO2 from the air) or a physical process (palladium absorbs hydrogen gas). 2. Capture and transformation of energy by a substance; for example, copper looks reddish because it absorbs blue light. An absorbent captures another material and distributes it throughout; an adsorbent captures another material and distributes it on its surface only.

Absorption Spectrum

Science / Chemistry / Absorption Spectrum: A plot that shows how much radiation a substance absorbs at different wavelengths. Absorption spectra are unique for each element and compound and they are often used as chemical 'fingerprints' in ana MORE

Absorption Rate

Business / Real Estate / Absorption Rate: The total number of vacant square feet of office space divided by the square footage leased per year historically. Used to analyze demand of office space in a given market area. MORE

Absorption Spectroscopy

Science / Chemistry / Absorption Spectroscopy: A technique for determining the concentration and structure of a substance by measuring the amound of electromagnetic radiation the sample absorbs at various wavelengths. MORE