9-letter words containing p, o, t, s
- pterosaur — any flying reptile of the extinct order Pterosauria, from the Jurassic and Cretaceous periods, having the outside digit of the forelimb greatly elongated and supporting a wing membrane.
- ptolemies — (Claudius Ptolemaeus) flourished a.d. 127–151, Hellenistic mathematician, astronomer, and geographer in Alexandria.
- pulpstone — a calcified mass in a dental cavity
- pulsation — the act of pulsating; beating or throbbing.
- pulsatory — pulsating or throbbing.
- push shot — Basketball. a shot with one hand from a point relatively distant from the basket, in which a player shoots the ball from shoulder level or above.
- puss moth — a large pale prominent moth, Cerura vinula, whose larvae feed on willow and poplar, and are bright green with a masklike red head and claspers modified as "tails" that are protruded and raised in a state of alarm: family Notodontidae
- pussyfoot — to go or move in a stealthy or cautious manner.
- pussytoes — any of various woolly plants of the genus Antennaria
- pustulous — pustular.
- pygostyle — the bone at the posterior end of the spinal column in birds, formed by the fusion of several caudal vertebrae.
- pyroclast — a piece of lava ejected from a volcano
- pythoness — a woman believed to be possessed by a soothsaying spirit, as the priestess of Apollo at Delphi.
- rainspout — waterspout (def 1).
- rapturous — full of, feeling, or manifesting ecstatic joy or delight.
- raspatory — a surgical instrument for abrading; surgeon's rasp
- redeposit — to place for safekeeping or in trust, especially in a bank account: He deposited his paycheck every Friday.
- reed stop — a set of reed pipes in a pipe organ.
- repositor — any surgical instrument used for correcting the position of displaced organs or bones
- rest stop — a stop made, as during a motor trip, to allow passengers to stretch their legs, use rest rooms, get refreshments, etc.
- ring spot — any of various plant diseases caused by a virus or fungus and characterized by concentric rings of discoloration or necrosis on the leaves.
- rotoscope — a projection device that allows images from live-action films to be traced to create an animated sequence
- rustproof — not subject to rusting.
- sallyport — a gateway permitting the passage of a large number of troops at a time.
- salt pork — pork cured with salt, especially the fat pork taken from the back, sides, and belly.
- sandspout — the sand sucked into the air by a whirlwind
- saponated — treated or combined with soap
- saprolite — soft, disintegrated, usually more or less decomposed rock remaining in its original place.
- sarcoptic — related to or caused by itch-mites that cause mange in animals
- scapegoat — a person or group made to bear the blame for others or to suffer in their place.
- scapolite — any of a group of minerals of variable composition, essentially silicates of aluminum, calcium, and sodium, occurring as massive aggregates or tetragonal crystals.
- scarpetto — a type of shoe traditionally worn by Alpine climbers
- sciophyte — any plant that grows best in the shade
- scoop out — remove, take out
- scope out — extent or range of view, outlook, application, operation, effectiveness, etc.: an investigation of wide scope.
- scopulate — broom-shaped; brushlike.
- scotophil — living and flourishing in darkness.
- screw top — (of a container) having a top that screws on.
- screw-top — (of a container) having a top that screws on.
- scriptory — of or relating to writing
- sellotape — clear sticking tape
- separator — a person or thing that separates.
- sepiolite — meerschaum (def 1).
- septation — a division between cavities or parts of an organism by partitions or septa
- septiform — sevenfold
- septimole — a group of seven musical notes to be played in the same space of time as either four or six
- serotypic — of or relating to a serotype
- set point — tennis: point that will win a set
- sheepcote — a pen or covered enclosure for sheep.
- shopcraft — any of various skilled trades involving maintenance or repair work, as metalworking or boilermaking, especially in the railroad industry.