Webster's English Dictionary

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sensation

Cross references:
  1. perception            
 
sen.sa.tion \sen-'sa--sh*n, s*n-\ n [ML sensation-, sensatio, fr. LL 
   sensatus endowed with sense] 1a: a mental process (as seeing, hearing, or 
   smelling) due to immediate bod ily stimulation often as distinguished from 
   awareness of the process 1b: awareness (as of heat or pain) due to 
   stimulation of a sense organ  1c: a state of consciousness usu. due to 
   physical objects or internal bodil y changes {binding ~ in his chest} 1d: 
   an indefinite bodily feeling {a ~ of buoyancy}  2: something (as a physical 
   object, sense-datum, pain, or afterimage) that  causes or is the object of 
   sensation 3a: a state of excited interest or feeling  3b: a cause of such 
   excitement