Definition of tacan in English:

tacan

noun

mass noun
  • An electronic ultra-high-frequency navigational aid system for aircraft, which measures bearing and distance from a ground beacon.

    • ‘I then tuned in channel 93 on my TACAN and received a good azimuth and a distance of 125 miles to Ubon Air Base.’
    • ‘I turned on my TACAN and dialed the frequency of the ship.’
    • ‘As luck would have it, my tacan quit working.’
    • ‘Everyone in the package seemed to be in place as I watched the air-to-air tacan steady to the briefed range.’

Origin

1950s: from tac(tical) a(ir) n(avigation).

Pronunciation

tacan

/ˈtak(ə)n/