9-letter words containing s, p, o, t, i
- protoavis — a fossil bird of the genus Protoavis, from the Triassic Period, having a birdlike, partly toothless jaw structure, a tail and hind legs resembling those of the dinosaur, and the hollow bones and keellike breast that are characteristic of modern birds: the oldest known avian type, preceding the archaeopteryx by an estimated 75 million years.
- proustian — of, relating to, or resembling Marcel Proust, his writings, or the middle-class and aristocratic worlds he described.
- proustite — a mineral, silver arsenic sulfide, Ag 3 AsS 3 , occurring in scarlet crystals and masses: a minor ore of silver; ruby silver.
- psoriatic — a common chronic, inflammatory skin disease characterized by scaly patches.
- psychotic — Psychiatry. characterized by or afflicted with psychosis. Synonyms: (in nontechnical usage) insane, psychopathic, lunatic, mentally ill; mad, disturbed, deranged, demented, non compos mentis. Antonyms: sane; compos mentis, clearheaded, lucid.
- ptolemies — (Claudius Ptolemaeus) flourished a.d. 127–151, Hellenistic mathematician, astronomer, and geographer in Alexandria.
- pulsation — the act of pulsating; beating or throbbing.
- rainspout — waterspout (def 1).
- redeposit — to place for safekeeping or in trust, especially in a bank account: He deposited his paycheck every Friday.
- repositor — any surgical instrument used for correcting the position of displaced organs or bones
- 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.
- 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
- scapolite — any of a group of minerals of variable composition, essentially silicates of aluminum, calcium, and sodium, occurring as massive aggregates or tetragonal crystals.
- sciophyte — any plant that grows best in the shade
- scotophil — living and flourishing in darkness.
- scriptory — of or relating to writing
- 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
- shotpoint — A shotpoint is a place at the surface of the Earth where a seismic source is activated.
- simpatico — congenial or like-minded; likable: I find our new neighbor simpatico in every respect.
- simpleton — an ignorant, foolish, or silly person.
- siphonate — (of molluscs) having a syphon
- sky pilot — a member of the clergy, especially a chaplain of the armed forces.
- sky-pilot — a member of the clergy, especially a chaplain of the armed forces.
- slo pitch — slow pitch
- slo-pitch — a type of softball with ten players per side and in which each pitch must travel in an arc from three to ten feet high.
- sociopath — a person with a psychopathic personality whose behavior is antisocial, often criminal, and who lacks a sense of moral responsibility or social conscience.
- soleprint — a print of the sole of a foot: often used in hospitals for identifying infants.
- solipsist — Philosophy. the theory that only the self exists, or can be proved to exist.
- sophister — a specious, unsound, or fallacious reasoner.
- sophistic — of the nature of sophistry; fallacious.
- sophistry — a subtle, tricky, superficially plausible, but generally fallacious method of reasoning.
- spill out — overflow
- spilosite — a form of slate
- spinosity — the condition of being spinose
- spiration — the act of breathing
- spiritoso — spirited; lively (used as a musical direction).
- spiritous — of the nature of spirit; immaterial, ethereal, or refined.
- split off — separate from group
- split-off — the act of separating or splitting away from something else.
- spoliator — a plunderer
- spot fine — penalty paid immediately
- spot line — a rope or wire hung from a specific place on the gridiron for flying a piece of scenery that could not be flied by the existing battens.
- spotlight — a strong, focused light thrown upon a particular spot, as on a small area of a stage or in a television studio, for making some object, person, or group especially conspicuous.
- stenopaic — (of an optic device) having a narrow opening devised to improve eyesight by limiting obscurations