a. [f. L. *lavātōri-us, f. lavāre to wash + -AL.] Of or pertaining to washing.
1839. Lady Lytton, Cheveley (ed. 2), II. iv. 117. Three pair of cotton stockings … bearing very bilious symptoms of the lavatorial skill of Sally.
1898. Daily News, 3 Sept., 3/1. The simplicity of the lavatorial arrangement could hardly be improved upon.
