nth

 
Pronunciation: /ɛnθ/

adjective

Mathematics
  • denoting an unspecified member of a series of numbers or enumerated items: systematic sampling by taking every nth name from the list
  • (in general use) denoting an unspecified item or instance in a series, typically the last or latest in a long series: he had just been booted out of his digs for the nth time

Phrases

to the nth degree

to the utmost: the gullibility of the electorate was tested to the nth degree by such promises