I. ˈtrȯikə noun
( -s )
Etymology: Russian troĭka, from troe three; akin to Lithuanian treji three, Sanskrit tri — more at three
: a Russian vehicle drawn by three horses abreast ; also : a team for such a vehicle
II. noun
1. : an administrative or ruling body of three
replaced by a troika of three coequal secretaries-general — Newsweek
2. : a group of three
astrology, yoga, and poetry are the troika of humanities that most interest him — A.J.Liebling