Having two ends. / (rail transport, of a train) Having a locomotive at each end. / (rail transport, of a multiple unit, or diesel or electric locomotive) Having a driving cab at each end.

simple past tense and past participle of double-end

plural of double boiler

plural of double chin

Having two strands / (genetics) That have two helical strands of nucleic acid that wind around each other and are connected by hydrogen bonds

plural of double helix

plural of double helix

plural of double play

A double feature. / The consecutive presentation of two episodes of a television series.

(business) To charge twice for a good or service.