12-letter words containing p, r, o, f, s
- serpentiform — shaped like a snake.
- shatterproof — designed or made to resist shattering: shatterproof glass in automobile windows.
- slipper foot — an elongated pad foot.
- sloop of war — (formerly) a sailing or steam naval vessel having cannons on only one deck.
- soil profile — a vertical succession of horizons, commonly lettered A, B, C (beginning at the surface), that have been subjected to soil-forming processes, chiefly leaching and oxidation.
- soporiferous — bringing sleep; soporific.
- soprano clef — a sign locating middle C on the bottom line of the staff.
- sportfishing — fishing with a rod and reel for sport, especially for saltwater sport fish from a motorboat.
- sr flip-flop — (hardware) (Or "RS flip-flop") A "set/reset" flip-flop in which activating the "S" input will switch it to one stable state and activating the "R" input will switch it to the other state. The outputs of a basic SR flip-flop change whenever its R or S inputs change appropriately. A clocked SR flip-flop has an extra clock input which enables or disables the other two inputs. When they are disabled the outputs remain constant. If we connect two clocked SR flip-flops so that the Q and /Q outputs of the first, "master" flip-flop drive the S and R inputs of the second, "slave" flip-flop, and we drive the slave's clock input with an inverted version of the master's clock, then we have an edge-triggered RS flip-flop. The external R and S inputs of this device are latched on one edge (transition) of the clock (e.g. the falling edge) and the outputs will only change on the next opposite (rising) edge. If both R and S inputs are active (when enabled), a race condition occurs and the outputs will be in an indeterminate state. A JK flip-flop avoids this possibility.
- stand up for — (of a person) to be in an upright position on the feet.
- stick up for — to pierce or puncture with something pointed, as a pin, dagger, or spear; stab: to stick one's finger with a needle.
- superfrontal — a piece of cloth placed over an altar and frontal and hanging down a few inches over the front of the altar
- unworshipful — not worshipful; not showing reverence or admiration
- up for grabs — to seize suddenly or quickly; snatch; clutch: He grabbed me by the collar.
- with-profits — A with-profits savings scheme or financial plan is one in which the people who put money into the scheme receive extra money each year based on how successful the investment has been.
- worshipfully — In a worshipful manner; reverentially.