Bowl - The part of the pipe that holds the tobacco.
Heel - The base of the inside of the pipe bowl.
Shank - The part of the pipe that joins the bowl and the stem.
Stem - The part that connects the shank with the bit. Examine it carefully. Its quality, finish and fit will reveal the maker's carelessness or attention to detail.
Bit - The part of the pipe stem that fits in the mouth. Also called the mouthpiece.
Bite-Proof Stem - A bit designed with a solid center portion at the mouth to prevent the "canine" tooth from punching a hole in it as readily as is done in a standard bit.
Amberoid Stem - A fusion of Bakelite and pure amber - usually used with meerschaum pipes.
Bakelite Stem - Trade name for a synthetic resin widely used for lacquers and varnishes and as a plastic. A common material used for the stem, especially of mass produced pipes. An alternative to vulcanite.
Amber - Brittle, feels like glass to the teeth - Usually used with meerschaum pipes.
Lucite - Trade name for a plastic. A common material used for the stem, especially of mass produced pipes.
Horn Stem - Animal horn - often found on inferior meerschaum pipes.
Bone Stem - Animal bone - often found on inferior meerschaum pipes.