A prerecorded piece of music used to accompany a musician who sings live

(epidemiology) To identify everyone with whom a person carrying an infectious disease has come into contact since contracting the disease.

(epidemiology) The process of identification of persons ("contacts") who may have come into contact with a person carrying an infectious disease.

present participle of contact trace

plural of track and bowl system

(finance) A financial regulatory instrument to prevent stock market crashes from occurring, by temporarily shutting down trading to allow accurate information to flow between parties.

plural of trading curb

(zoology) A saucer-shaped depression surrounded by tracks, dug by the male kakapo to enhance its booming mating call.

(rail transport) A freight train that carries only one commodity.

Alternative spelling of trailblazing