Initialism of Collins English Dictionary. / Initialism of Cultural Entomology Digest, an entomology magazine / Initialism of Committee for Economic Development. / Cambridge Electronic Design

(motor racing) A vehicle employed to lead the competitors in an auto race for the duration of a few laps, with the intention of restricting their speed while a hazard exists on the circuit.

Determining the age of artefacts by means of radiometry.

Alternative form of achoo