As a Noun: 1. [In medical situations] the directing of a patient to a medical specialist by a general practitioner (doctor or GP) for consultation, review, or further action. English = referral. As a Verb or Adjective: 1. Of a task or problem, to formally tell a person or an organisation about it, so that they can deal with it. English = refer. 2. Of a person in need of assistance or information, to tell them about a source of information or an organisation which can help them; of a general practitioner (doctor or GP) to direct a patient to a medical specialist for consultation, review, or further action. English = refer.