I. | ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ adjective
1. : being number 87 in a countable series
the eighty-seventh day
— see number table
2. : being one of 87 equal parts into which something is divisible
an eighty-seventh share of the money
II. noun
1. : number 87 in a countable series
2. : the quotient of a unit divided by 87 : one of 87 equal parts of something
one eighty-seventh of the total