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tabula rasa
tabular
tabularize
tabulate
tabulator
tabun
TAC
tacamahac
Tacan
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Tacan
Tac·an [ tá kàn ]


noun 
Definition:
 
aircraft navigation system: an aircraft navigation system using UHF signals emitted from a transmitting station to determine distance and bearing
[Mid-20th century. Acronym <tactical + air + navigation]
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