UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈtræfɪˌkeɪtə/US:USA pronunciation: respellingUSA pronunciation: respelling(trafi kā′tər)

WordReference Random House Unabridged Dictionary of American English © 2020
traf•fi•ca•tor  (trafi kā′tər),USA pronunciation n. [Brit.]
  1. a directional signal on a vehicle for indicating which way it is going to turn.
  • traffic + (indic)ator

Collins Concise English Dictionary © HarperCollins Publishers::
trafficator /ˈtræfɪˌkeɪtə/ n
  1. (formerly) an illuminated arm on a motor vehicle that was raised to indicate a left or right turn
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