- the basic unit of an experience resulting from the stimulation of a sense organ; a stimulus or an object of perception or sensation.
- datum (def. 3).
- a sensation detached both from any information it may convey and from its putative source in the external world, such as the bare awareness of a red visual field. Sense data are held by some philosophers to be the immediate objects of experience providing certain knowledge from which knowledge of material objects is inferred
