tenon
Lip.
The stem is the part of the pipe that connects the bowl with the mouthpiece of the pipe. If there is no mouthpiece, the smoker will bite down on the stem itself.
A stem
It is called a stem
The top is called the stem end and the bottom is called the bottom.
The Spigot end is the ends that goes into the socket end of the pipe
The pipe-stem triangle, also known as a pipe-stem holder or pipe-stem support, is a laboratory apparatus used primarily in chemistry. It provides a stable platform for supporting glassware, such as test tubes or flasks, during heating or other experimental procedures. The triangular shape allows for better weight distribution and stability, preventing spills or accidents. This tool is often used in conjunction with a Bunsen burner or other heat sources.
the top is the stem end and the bottom is the blossom end.
Pipe nipple is use as connector to both pipe which have female end. It does not same as pipe reducer which nipple has same diameter throughout both end and threaded. Pipe reducer has different diameter for both end and it is use to join different pipe diameter.
The fitting allowance is the difference: (pipe end to fitting center measurement) minus (pipe end to end measurement). It is the amount of length the fitting adds to the end of the pipe (to get the center of the turn).
well they are stem cells at the end of things
End correction in a pipe refers to the adjustment made to account for the influence of the end effects on fluid flow. These effects occur due to the changes in fluid behavior near the open ends of the pipe, such as velocity profiles and pressure distribution. A proper end correction ensures more accurate measurements in pipe flow systems.