Măt'rass, n.

n. [Fr. matras, Sp. matras, matraz, It. matraccio, from O. Fr. matras, Pr. matratz, matrat, large arrow, dart; Lat. materis, maturis, matara, a Celtic javelin, pike; a Celtic word. So called from its narrow, long neck.] A chemical vessel in the shape of an egg, or with a tapering neck open at the top, serving the purposes of digestion, evaporation, &c. It is superceded, in the modern laboratory, by the flask; a cucurbit.