A stem is thing that hold up the flower. stem can also mean like diverge stems are dis and verge that is what another meaning of stem is.
stem cells are used to to produce, fix or replace other cells and are capable of forming a whole organism
STEM is an acronym for Science, Technology, Engineering and Mathematics
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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
Rising stem gate Valve- Stem threads are out side of valve body and in no contact with fluid medium. Stem rises while opening the valve (by hand wheel). Since the stem threads are located outside obviously it needs some more vertical clearance space while opening the valve.Non Rising Stem gate Valve - Stem threads are inside the the valve body and it is in contact with fluid medium. Hence, lot of chances for fouling the threads and these types of valves only can be used in clean liquids and gases. Less vertical clearance space required while opening the valve.
Edward Scarlett
With the faucet shut off, take the handle off and under it is a nut around the stem. There is either an O ring under the nut, a fiber washer or stem packing depending on what type of faucet it is. Replace which ever it has and that should fix it. If your faucet is a screw type, the handle turns several time when opening it, you can probably take the nut off, wrap two or three wraps of stem packing around the stem, clockwise looking down on it and replace the nut and tighten. This will compress the packing around the stem without replacing the cone washer in the nut or all of the old packing.