A small tube, tapering to a straight or slightly curved tip, used in anatomy and zoology to reveal or clean a cavity.

1. A long, straight tube, used in glass blowing, on which molten glass is gathered and worked.

2. A small, tapered, and frequently curved tube that leads a jet, usually of air, into a flame to concentrate and direct it; used in flame tests in analytical chemistry and in brazing and soldering of fine work.

3. See <<blowtorch>>