a. rare. [ad. L. smēcticus (Pliny), ad. Gr. σμηκτικός, f. σμήχειν to wipe, cleanse; cf. SMEGMA.] Cleansing, abstersive, detergent.
1675. Evelyn, Terra (1676), 40. Smooth to the touch, as the most Smectic Earths and Marles themselves.
1686. Plot, Staffordsh., 124. The Smectic and figuline Earths.
1858. Mayne, Expos. Lex., Smecticus, cleaning;… smectic.
