MATTRESS

mattress. Mattress, n. a kind of quilted bed to lie on

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Mat″tress (?), n. [[OF. materas, F. matelas, LL. matratium; cf. Sp. & Pg. almadraque, Pr. almatrac; all from Ar. maṭrah a place where anything is thrown, what is thrown under something, fr. ṭaraha to throw.]] 1. 1. A quilted bed; a bed stuffed with hair, moss, or other suitable material, and quilted or otherwise fastened. [Written also matress.]
2. 2. (Hydraulic Engin.) A mass of interwoven brush, poles, etc., to protect a bank from being worn away by currents or waves.