The action of making or becoming extinct; annihilation.
The absorption or scattering of electromagnetic radiation emitted by astronomical objects by intervening dust and gas before it reaches the observer.
The inability to perceive multiple stimuli simultaneously.
The fading of a conditioned response over time if it is not reinforced.
Process of being, or state of having been, made liquid (from either a solid or a gas)
The liquid or semiliquid that results from this process.