also: オルタネート
noun
Loanword from English 'alternate', used as a noun. Often appears in technical or sports contexts, such as 'alternate member' or 'alternate route'.
彼はチームのオルタネイトとして選ばれた。
He was selected as an alternate for the team.
この回路はオルタネイト動作をする。
This circuit operates in alternate mode.