I. | ̷ ̷ ̷ ̷| ̷ ̷ adjective
1. : being number 86 in a countable series
the eighty-sixth day
— see number table
2. : being one of 86 equal parts into which something is divisible
an eighty-sixth share of the money
II. noun
1. : number 86 in a countable series
2. : the quotient of a unit divided by 86 : one of 86 equal parts of something
one eighty-sixth of the total