a measure of

n (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation

plural of absorbance n (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation

n a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance

n a measure of someone's weight in relation to height

n a measure of how densely information is packed on a storage medium