precision

/pri-ˈsi-zhən/

noun

  1. the quality or state of being precise : exactness

  2. the degree of refinement with which an operation is performed or a measurement stated

  3. the accuracy (as in binary or decimal places) with which a number can be represented usually expressed in terms of the number of computer words available for representation

adjective

  1. adapted for extremely accurate measurement or operation

  2. held to low tolerance in manufacture

  3. marked by precision of execution

noun

  1. a branch of medicine concerned with developing therapies targeted to individuals or particular groups based on their unique genetic, molecular, or phenotypic characteristics; also : a therapy developed in this manner —called also personalized medicine

{d_link|Pharmacogenomics|pharmacogenomics} is an emerging field at the heart of precision medicine that uses a person's genetic information to help guide drug selection and dose.