Water tender

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1.(Nav.) In the United States navy, a first-class petty officer in charge in a fireroom. He "tends" water to the boilers, sees that fires are properly cleaned and stoked, etc. There is also a rating of chief water tender, who is a chief petty officer.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The HEWATT water tender is built to support the TFFT while also providing supplementary fire suppression capabilities.
Two fire engines and one water tender responded, and the fire was under control less than five minutes after the first engine arrived, Kronser said.
Fifteen firefighters responded, including three engines, a medic unit, a water tender and two command units.