Definitions of expectation

  1. the sum of the values of a random variable divided by the number of values
  2. the feeling that something is about to happen
  3. The act or state of expecting or looking forward to an event as about to happen.
  4. That which is expected or looked for.
  5. The prospect of the future; grounds upon which something excellent is expected to happen; prospect of anything good to come, esp. of property or rank.
  6. The value of any chance ( as the prospect of prize or property) which depends upon some contingent event. Expectations are computed for or against the occurrence of the event.
  7. The leaving of the disease principally to the efforts of nature to effect a cure.
  8. The act of looking forward to; anticipation; prospect of future advancement.
  9. The act of expecting or looking forward to an event as about to happen; as, " The same weakness of mind which indulges absurd expectations, produces petulance in disappointment."- Irving; the state of being expected or looked for; the state of being awaited; " Our preparation stands in expectation."- Shak.: that which is expected; the object of expectation; the expected Messiah; prospect of future good, as of possessions, wealth, and the like- usually in the plural; " My soul, wait thou only upon God, for my expectation is from him."- Ps. ixii. 5; " His magnificent expectations made him ... the best match in Europe."- Prescott: a state or qualities in a person which excite expectations in others of some future excellence; promise; " By all men's eyes a youth of expectation."- Otway: in med. the method of leaving a disease to the efforts of nature; or of waiting for farther development before treating it actively: the value of any prospect of prize or property depending upon the happening of some uncertain event, a sum of money in expectation upon a certain event having a determinate value before that event happens; if the chances of receiving or not receiving a hundred pounds when an event arrives are equal, then before the arrival of the event the expectation is worth half the money.
  10. The act of looking confidently for something future; expectancy.
  11. Something expected; a hopeful prospect, as of wealth; often plural.
  12. The act of expecting; the state of being expected; prospect of good to come; the object of expectation; promise; the treatment of disease without active remedies by anticipating and averting consequences physiologically. Expectation of life, the mean or average duration of human life after a specified age.