in the field

in the field definitions

prep
  • Actively engaged in fighting or dealing with the enemy; in battle or on maneuvers. 

  • Away from the office, classroom, or laboratory; working with people or things in their natural environment. 

  • Used other than figuratively or idiomatically: see in, field. 

  • In a real-world setting, as opposed to the controlled conditions of a laboratory or the hypothesized parameters of a theoretical approach.