MATRASS

matrass. Matrass, n. a long chymical glass vessel

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Ma‐trass″ (?), n. [[F. matras; perh. so called from its long narrow neck; cf. OF. matras large arrow, L. materis, mataris, matara, a Celtic javelin, pike; of Celtic origin.]] (Chem.) A round-bottomed glass flask having a long neck; a bolthead.