Tag Archives | tar-penetration macadam

Blue Juice, Tarmac, and Other Air Travel Slang

We’re still sitting on the tarmac… Given how much I travel, I’ve used that phrase countless times over the last several years but never thought much about the word tarmac. It turns out it’s short for tarmacadam, or tar-penetration macadam. Macadam is named for John Loudon McAdam who invented an effective and economical road construction method…

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