S 1. Abbreviation on drawings for south. 2. Abbreviation sometimes used for seamless. 3. Abbreviation for second. 4. A type of mortar used in exterior applications amounting to 1 part Portland cement by volume, 1 part hydrated lime by volume, and water in the amount of 2/4 to 3 times the sum of the volumes of cement and lime. It is useful for normal compressive and high lateral loads. It is the most common type used in reinforced masonry. Type M is stronger than type N.

saber saw A power-driven saw with an oscillating blade that acts similar to a jigsaw but has a wider and longer blade.

sabulous A sandy or gritty texture.

saccate In botanical terms, sack or bag shaped.

sack rub or sack finish A finish for concrete surfaces to produce even texture by filling pits and air holes. In this process, the surface is dampened, then mortar is rubbed over it, and then before it dries a mixture of dry cement and sand is rubbed onto it to remove surplus mortar and fill voids.

saddle 1. A roof cricket. 2. A floor support for a heavy pipe. 3. A device that is clamped to a pipe so that a hole may be drilled into the pipe and a pipe attached for access.

saddleback A coping stone with a ridge at its upper surface sloped to direct water to either side of a wall.

saddle fitting A fitting that clamps over an existing pipe with a portion fitting the pipe much like a horse saddle and having a threaded hole in it for attaching another pipe. A hole is drilled into the existing pipe and the saddle is tightened to allow a leakproof attachment of pipe to the threaded hole.

saddle joint A joint for sheet-metal roofing; formed by bending up the edge of one sheet and folding it downward over the turned-up edge of an adjacent sheet.

saddle notch A rounded notch cut near one end of the lower surface of a horizontal log interlocking with another log below it.

safety net A woven, mesh fabric suspended below a place where people or materials may fall that protects from serious injury or damage in such a fall.

safe well yield The maximum pumping rate in a water well without lowering the well water level below the pump intake in the well.

safe yield The amount of water that can be withdrawn annually from a groundwater basin or aquifer without an undesirable result. Undesirable results can include reduction of groundwa-ter, intrusion of poor quality water, violation of water rights, depletion of stream flows, and subsidence.

sagittate In botanical terms, arrowhead-shaped with basal ears turned downward or inward. (Compare with leaf base descriptions of cuneate, obtuse, cordate, auriculate, attenuate, hastate, truncate, oblique.)

sailor A brick placed on its end and having its wider face showing on a wall surface. (Compare with soldier.)

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