thirty-seventh I. \| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷\adjective 1.: being number 37 in a countable series < the thirty-seventh day > — see number table 2.: being one of 37 equal parts into which anything is divisible < a thirty-seventh share of the money > II. noun 1.: number 37 in a countable series 2.: the quotient of a unit divided by 37 : one of 37 equal parts of anything < one thirty-seventh of the total >