cylinder /cyl·in·der/ (sil´in-der)
cylinder,
1. a solid body shaped like a column.cylin´drical
2. cylindrical lens.
axis cylinder axon (1).
cyl·in·der (s l  n-dr)n. 1. The surface generated by a straight line intersecting and moving along a closed plane curve, the directrix, while remaining parallel to a fixed straight line that is not on or parallel to the plane of the directrix. 2. A solid bounded by two parallel planes and such a surface, especially such a surface having a circle as its directrix. 3. A cylindrical or rodlike renal cast. 4. A cylindrical lens. 5. A cylindrical metal container for gases stored under high pressure. |
cylinder,
a solid body having a circular transverse section. Exceptions include hollow gas cylinders, crossed cylinders used to measure astigmatism, and terminal cylinders of sensory nerve fibers.
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