seriatim

adverb | \ ˌsir-ē-ˈā-təm, -ˈa-, -ˈä- \ | se·ri·a·tim
  1. : in a series : individually in a sequence we will consider the complaints seriatim

seriatim

adjective
  1. : occurring or following in a series talked to the various trustees in seriatim telephone calls —Professional Hockey Corp. v. World Hockey Ass'n, 191 Cal. Rptr. 773 (1983)