I. | ̷ ̷ ̷ ̷| ̷ ̷ adjective
1. : being number 83 in a countable series
the eighty-third day
— see number table
2. : being one of 83 equal parts into which something is divisible
an eighty-third share of the money
II. noun
1. : number 83 in a countable series
2. : the quotient of a unit divided by 83 : one of 83 equal parts of something
one eighty-third of the total