'troika' definitions:

Definition of 'troika'

(from WordNet)
noun
A Russian carriage pulled by three horses abreast
noun
The cardinal number that is the sum of one and one and one [syn: three, 3, III, trio, threesome, tierce, leash, troika, triad, trine, trinity, ternary, ternion, triplet, tercet, terzetto, trey, deuce- ace]
noun
A modern Russian triumvirate

Synonyms of 'troika'

From: Moby Thesaurus