9-letter words containing p, o, t, s
- photomask — an opaque image on a transparent plate that is used to filter light so the image can be transferred, used in photolithography applications
- photonics — the study and technology of the use of light for the transmission of information.
- photopsia — a rare disease of the eye's retina that results in the perception of flashes of light
- photoscan — to study the distribution of a radioactive isotope or radiopaque dye in (a body organ or part) through the use of x-rays.
- photoshop — (often lowercase) to digitally alter (a photograph or other graphic) using image-editing software such as Photoshop: Her face is nicely Photoshopped in the ad. They’ve photoshopped the car onto an image of a beautiful beach.
- photostat — a camera for making facsimile copies of documents, drawings, etc., in the form of paper negatives on which the positions of lines, objects, etc., in the originals are maintained.
- phytosaur — any armored, semiaquatic reptile of the extinct order Phytosauria, of the Mesozoic Era, resembling the crocodile but unrelated, having the nostrils high on the snout and with well-developed hind limbs suggestive of bipedal ancestors.
- pianolist — a person who plays the Pianola
- pilotfish — a small, marine fish, Naucrates ductor, often swimming with sharks.
- pilotless — lacking a pilot or needing no pilot: pilotless aircraft.
- pipestone — a reddish argillaceous stone used by North American Indians for making tobacco pipes.
- pirithoüs — a prince of the Lapiths, who accomplished many great deeds with his friend Theseus
- piscatory — of or relating to fishermen or fishing: a piscatory treaty.
- pistachio — the nut of a Eurasian tree, Pistacia vera, of the cashew family, containing an edible, greenish kernel.
- pistoleer — a person, especially a soldier, who uses or is armed with a pistol.
- pistolero — a member of an armed band of roving mounted bandits.
- pistolier — a person, especially a soldier, who uses or is armed with a pistol.
- pistology — the branch of theology dealing with faith.
- pistorius — Oscar (Leonard Carl), born 1986, South African sprinter in races for below-the-knee amputees; winner of six Paralympic gold medals (2004–2012); found guilty of the murder of his girlfriend Reeva Steenkamp (1983–2013)
- pituitous — mucous.
- plastisol — a dispersion of resin in a plasticizer, forming a liquid or paste that gels when heated.
- platforms — a horizontal surface or structure with a horizontal surface raised above the level of the surrounding area.
- platinous — containing bivalent platinum.
- platonism — the philosophy or doctrines of Plato or his followers.
- platonist — the philosophy or doctrines of Plato or his followers.
- plenteous — plentiful; copious; abundant: a plenteous supply of food.
- pleonaste — a type of blackish mineral
- pleoptics — the practice of treating the vision defect amblyopia.
- plotinism — the Neoplatonism of Plotinus.
- plutonism — the intrusion of magma and associated deep-seated processes within the earth's crust.
- podcaster — a digital audio or video file or recording, usually part of a themed series, that can be downloaded from a website to a media player or computer: Download or subscribe to daily, one-hour podcasts of our radio show.
- poetaster — an inferior poet; a writer of indifferent verse.
- poeticism — a poetic expression that has become hackneyed, forced, or artificial.
- pogromist — a person who participates in a pogrom
- point-set — (of spaces) cast in widths that conform to standard point measure.
- pointless — without a point: a pointless pen.
- pointsman — a railway switchman.
- pointwise — occurring at each point of a given set: pointwise convergence.
- pole mast — a mast on a sailing vessel, consisting of a single piece without separate upper masts.
- pole star — Polaris.
- pole-star — Polaris.
- politesse — formal politeness; courtesy.
- polyester — Chemistry. a polymer in which the monomer units are linked together by the group –COO–, usually formed by polymerizing a polyhydric alcohol with a polybasic acid: used chiefly in the manufacture of resins, plastics, and textile fibers.
- polystyle — having many columns.
- pomposity — the quality of being pompous.
- pontlevis — a drawbridge.
- pooterish — characteristic of or resembling the fictional character Pooter, esp in being bourgeois, genteel, or self-important
- popliteus — a thin, flat, triangular muscle in back of the knee, the action of which assists in bending the knee and in rotating the leg toward the body.
- port arms — a position in military drill in which one's rifle is held diagonally in front of the body, with the muzzle pointing upward to the left.
- port dues — the charge for the use of a port