(chemistry) a process in which one substance permeates another; a fluid permeates or is dissolved by a liquid or solid
(physics) the process in which incident radiated energy is retained without reflection or transmission on passing through a medium; "the absorption of photons by atoms or molecules"
the state of being emotionally aroused and worked up; "his face was flushed with excitement and his hands trembled"; "he tried to calm those who were in a state of extreme inflammation"