[ad. assumed L. *lavātōri-us, f. lavāre to wash: see LAVE v.1] Of or pertaining to washing.

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1846.  in Worcester citing Month. Rev.

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1865.  Merivale, Rom. Emp., VIII. lxvi. 217. The latter … contrasts the lavatory resources of Rome with those of Grecian cities generally.

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1890.  [R. E. Forrest], in Cornh. Mag., Oct., 358. His linen long-coat is a perfect marvel of the lavatory art,… so snowy white is it.

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