Eightieth

• (a.) The next in order after seventy-ninth. • (n.) The quotient of a unit divided by eighty; one of eighty equal parts. • (a.) Consisting of one of eighty equal parts or divisions.
Found on http://thinkexist.com/dictionary/meaning/eightieth/

eightieth

80th adjective the ordinal number of eighty in counting order
Found on https://www.encyclo.co.uk/local/20974

Eightieth

Eight'i·eth adjective [ From Eighty .] 1. The next in order after seventy-ninth. 2. Consisting of one of eighty equal parts or divisions.
Found on http://www.encyclo.co.uk/webster/E/14

eightieth

[adj] - the ordinal number of eighty in counting order 2. [n] - position 80 in a countable series of things
Found on http://www.webdictionary.co.uk/definition.php?query=eightieth
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