the capacity of a substance to absorb radiation, expressed as the common logarithm of the reciprocal of the transmittance of the substance.
(physics) a measure of the light-absorbing ability of an object, expressed as the logarithm to base 10 of the reciprocal of the internal transmittance See transmittance
absorbance ab·sorb·ance (əb-sôr’bəns, -zôr’-) or ab·sorb·an·cy or ab·sorb·en·cy (əb-sôr’bən-sē, -zôr’-)
Abbr. A In spectrophotometry, equal to 2 minus the log of the percentage transmittance of light. Also called extinction, optical density.
deeply interested or involved; preoccupied: He had an absorbed look on his face. to suck up or drink in (a liquid); soak up: A sponge absorbs water. to swallow up the identity or individuality of; incorporate: The empire absorbed many small nations. to involve the full attention of; to engross or engage wholly: so absorbed […]
- Absorbed dose
(def 4a). noun the amount of energy transferred by nuclear or ionizing radiation to a unit mass of absorbing material absorbed dose n. The quantity of radiation energy, expressed in rads, that is administered or absorbed per unit mass of target.
deeply interested or involved; preoccupied: He had an absorbed look on his face. Historical Examples She sketched rapidly but fixedly and absorbedly, evidently forgetting all else in her work. Under the Redwoods Bret Harte By midnight, ship-time, she’d learned the game and played it absorbedly. Pariah Planet Murray Leinster absorbedly, Stone took them from her, […]
causing . noun a medicine or other agent that promotes absorption adjective causing or promoting absorption absorbefacient ab·sor·be·fa·cient (əb-sôr’bə-fā’shənt, -zôr’-) adj. Causing absorption. ab·sor’be·fa’cient n.