Armco

noun

noun ·2 syllables ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A type of metal roadside safety barrier. uncountable

    "The car skidded off the road and crashed into the Armco."

Example

More examples

"The car skidded off the road and crashed into the Armco."

Etymology

From the initials of the name of steel manufacturer The American Rolling Mill Company (now AK Steel Holding Corporation).

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.