n.
   - a physical feeling or perception resulting from something that happens to or comes into contact with the body. 
▸the capacity to have such feelings or perceptions.
 - an inexplicable awareness or impression.
 - a widespread reaction of interest and excitement. 
▸a person or thing that arouses such interest and excitement.
 
 
  Etymology
  C17: from med. L. sensatio(n-), from L. sensus (see sense).