referral
US: /ɹɪˈfɝəɫ/
UK: /ɹɪfˈɜːɹəl/
UK: /ɹɪfˈɜːɹəl/
Advanced English dictionary
+ noun
[U, C] ~ (to sb/sth) the act of sending sb who needs professional help to a person or place that can provide it: illnesses requiring referral to hospitals + to make a referral + The report suggests that doctors should reduce their rate of referral (= to specialists). + a referral form / letter