noun
- A long-necked, round-bottomed glass vessel used in laboratories for distillation and chemical reactions.
Usage: Also spelled matras or matrasse; Chiefly historical or technical in modern usage
Examples
- The chemist heated the liquid in a matrass over an open flame.
- Medieval alchemists relied on the matrass for their distillation experiments.
- The matrass's long neck allowed vapors to rise and condense during the process.