seventy-second /ˌsɛvənti ˈsɛkənd/adjective 2noun 1forms 1 adjective2 •The ordinal form of the number seventy-two, describing a person or thing in position number 72 of a sequence.The answer appears on the seventy-second page of the book.She finished seventy-second in the race. •Lasting seventy seconds. noun1 •One of seventy-two equal parts of a whole.A seventy-second of 1440 is 20. formsseventy-seconds