General Science

  • noun the degree to which someone or something can be trusted


  • noun the fact of being reliable


  • noun the ability of a device to function as intended, efficiently and without failure


Health Economics

  • (written as Reliability)
    The ability of an instrument, observer or other means of measuring entities to discriminate consistently between different values of the entity under investigation. It is not the same as mere consistency, with which it is sometimes confused: a car may consistently fail to start, which makes it an unreliable means of transport; a broken thermometer may give a consistently wrong reading - neither can be relied upon to do the job for which it was designed. There are many kinds.

Information & Library Science

  • noun the quality of being reliable