seventeenth

adjective

1. next after the sixteenth; being the ordinal number for 17.
2. being one of 17 equal parts.

noun

3. a seventeenth part, especially of one (1/17).
4. the seventeenth member of a series.

adjective

1. (usually prenominal)
   1. coming after the sixteenth in numbering or counting order, position, time, etc; being the ordinal number of seventeen: often written 17th
   2. (as noun)the ship docks on the seventeenth

noun

2. 1. one of 17 approximately equal parts of something
   2. (as modifier)a seventeenth part
3. the fraction equal to one divided by 17 (1/17)

adj.c.1300, seventenþe, from seventeen + -th (1); replacing forms based on Old English seofonteoþa.