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12-letter words containing p, r, o, l, i

  • rhizophilous — (esp of insects) preferring to live or grow near or on roots
  • ribbon plant — spider plant (def 1).
  • ripe old age — advanced age
  • risk pooling — Risk pooling is the practice of sharing all risks among a group of insurance companies.
  • role playing — role-play used as a method of training or education
  • role-playing — a method of instruction or psychotherapy aimed at changing attitudes and behavior, in which participants act out designated roles relevant to real-life situations.
  • rolling plan — a plan which is designed to continue over a period of time and is subject to regular review and updating
  • rs flip-flop — SR flip-flop
  • saprobiology — the branch of ecology that studies decaying organic matter or environments, especially saprophytes that derive nourishment in this way.
  • scolopendrid — any myriapod of the order Scolopendrida, including many large, poisonous centipedes.
  • scopes trial — John Thomas, 1901–70, U.S. high-school teacher whose teaching of the Darwinian theory of evolution became a cause célèbre (Scopes Trial or Monkey Trial) in 1925.
  • scorpion fly — any of several harmless insects of the order Mecoptera, the male of certain species having a reproductive structure that resembles the sting of a scorpion.
  • scrophularia — a member of a genus of flowering plants which have a square stem and are known as figworts
  • scrupulosity — having scruples, or moral or ethical standards; having or showing a strict regard for what one considers right; principled: scrupulous about defending human rights.
  • self-proving — to establish the truth or genuineness of, as by evidence or argument: to prove one's claim.
  • self-worship — reverent honor and homage paid to God or a sacred personage, or to any object regarded as sacred.
  • semi-popular — regarded with favor, approval, or affection by people in general: a popular preacher.
  • semitropical — subtropical.
  • short splice — a splice used when an increased thickness of the united rope is not objectionable, made by unlaying the rope ends a certain distance, uniting them so that their strands overlap, then tucking each alternately over and under others several times.
  • siderophilic — having characteristics of siderophile
  • signal corps — a branch of the army responsible for military communications, meteorological studies, and related work.
  • silver point — the melting point of silver, equal to 960.8°C, used as a fixed point on the international temperature scale.
  • silver spoon — spoon (def 16).
  • simple group — a group that has no normal subgroup except the group itself and the identity.
  • slip through — be undetected
  • slipper foot — an elongated pad foot.
  • slipper sock — a sock with a soft leather or vinyl sole sewn onto it, used as indoor footwear.
  • sloop-rigged — (of a sailboat) fore-and-aft rigged with a mainsail and a jib.
  • 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.
  • sophomorical — characteristic of a sophomore
  • special sort — a character, such as an accented letter, that is not a usual member of any font
  • spectatorial — a person who looks on or watches; onlooker; observer.
  • spin control — Slang. an attempt to give a bias to news coverage, especially of a political candidate or event.
  • spiral-bound — having a spiral binding.
  • spirochaetal — resulting from spirochaetes
  • spoil ground — an area within a body of water, especially in the sea, where dredged material is deposited.
  • sporadically — (of similar things or occurrences) appearing or happening at irregular intervals in time; occasional: sporadic renewals of enthusiasm.
  • sporangiolum — a small sporangium
  • sportability — suitability to be used in or as a sport
  • 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.
  • stabilograph — an instrument for measuring body sway.
  • streptolysin — a type of hemolysin produced by certain species of streptococcus.
  • strophiolate — having a strophiole
  • stylographic — of or relating to a stylograph.
  • sub-tropical — Sub-tropical places have a climate that is warm and wet, and are often near tropical regions.
  • super-polite — showing good manners toward others, as in behavior, speech, etc.; courteous; civil: a polite reply.
  • supercilious — haughtily disdainful or contemptuous, as a person or a facial expression.
  • supercooling — to cool (a liquid) below its freezing point without producing solidification or crystallization; undercool.
  • superordinal — relating to the superorder
  • suppletorily — supplying a deficiency.
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