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armor plate

or armor plating

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noun

a plate or plating of specially hardened steel used to cover warships, tanks, aircraft, fortifications, etc., to protect them from enemy fire.

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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of armor plate

First recorded in 1860–65
ar·mor·plat·ed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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