SENSA'TION, noun [from Latin sensus, sentio, to perceive. See Sense.] The perception of external objects by means of the senses.
Sensation is an exertion or charge of the central parts of the sensorium, or of the whole of it, beginning at some of those extreme parts of it which reside in the muscles or organs of sense. The secretion of tears in grief is caused by the sensation of pain. Efforts of the will are frequently accompanied by painful or pleasurable sensations.