10-letter words containing s, p, o, i
- protoctist — (in modern biological classifications) any unicellular or simple multicellular organism belonging to the kingdom Protoctista, which includes protozoans, algae, and slime moulds
- protrusile — capable of being thrust forth or extended, as the tongue of a hummingbird.
- protrusion — the act of protruding or the state of being protruded.
- protrusive — projecting or protuberant; thrusting forward, upward, or outward.
- provisions — a clause in a legal instrument, a law, etc., providing for a particular matter; stipulation; proviso.
- psalmodize — to sing psalms
- pseudimago — (of insects) a form similar to the adult, but which is not a true adult
- pseudoacid — a compound that is not an acid but which undergoes certain typical reactions of an acid
- pseudocide — the act of faking one’s own death
- pseudosuit — /soo'doh-s[y]oot"/ A suit wannabee; a hacker who has decided that he wants to be in management or administration and begins wearing ties, sport coats, and (shudder!) suits voluntarily. It's his funeral. See also lobotomy.
- psilocybin — a hallucinogenic crystalline solid, C 1 2 H 1 7 N 2 O 4 P, obtained from the mushroom Psilocybe mexicana.
- psilophyte — any plant that is adapted to grow well in the dry savannah
- pterylosis — the arrangement of feathers on a bird
- ptolemaist — an adherent or advocate of the Ptolemaic system of astronomy.
- pugnacious — inclined to quarrel or fight readily; quarrelsome; belligerent; combative.
- pultrusion — a process for manufacturing reinforced plastic products in which a bundle of glass fibres is pulled through a resin bath and then through a heated die to shape the resin
- pupigerous — (of an insect) having a pupa
- pupiparous — (of an insect) bearing fully developed larvae that are ready to pupate.
- pyatigorsk — a city in the SW Russian Federation in Europe, in Caucasia.
- pyogenesis — the generation of pus; the process of the formation of pus.
- pyranoside — a glycoside containing a pyran ring structure.
- pyrolusite — a common mineral, manganese dioxide, MnO 2 , the principal ore of manganese, used in various manufactures, as a decolorizer of brown or green tints in glass, and as a depolarizer in dry-cell batteries.
- pyrrhonism — the Skeptic doctrines of Pyrrho and his followers.
- quoin post — the vertical post at the side of a lock gate, about which the gate swings
- radioscope — an instrument, such as a fluoroscope, capable of detecting radiant energy
- radioscopy — the examination of objects opaque to light by means of another form of radiation, usually x-rays.
- rat poison — substance toxic to rodents
- redisposed — to give a tendency or inclination to; incline: His temperament disposed him to argue readily with people.
- reimprison — to confine in or as if in a prison.
- reposition — the act of depositing or storing.
- repository — a receptacle or place where things are deposited, stored, or offered for sale: a repository for discarded clothing.
- repoussoir — a figure or object in the extreme foreground: used as a contrast and to increase the illusion of depth.
- repression — the act of repressing; state of being repressed.
- reptilious — like a reptile, resembling or characteristic of a reptile
- resorption — the destruction, disappearance, or dissolution of a tissue or part by biochemical activity, as the loss of bone or of tooth dentin.
- respirator — a masklike device, usually of gauze, worn over the mouth, or nose and mouth, to prevent the inhalation of noxious substances or the like.
- responsion — the act of responding or answering.
- responsive — responding especially readily and sympathetically to appeals, efforts, influences, etc.: a responsive government.
- resumption — the act of resuming; a reassumption, as of something previously granted.
- rhapsodist — a person who rhapsodizes.
- rhapsodize — to talk with extravagant enthusiasm.
- rhinoscope — a special instrument used to examine the nasal passages
- rhinoscopy — examination of the nasal passages, esp with a rhinoscope
- riflescope — a telescopic sight mounted on top of a rifle that helps to improve one's aim by magnifying and pinpointing a target.
- ripsnorter — something or someone exceedingly strong or violent: a ripsnorter of a gale.
- rood spire — a spire over the crossing of a church.
- rose aphid — a dark green aphid, Macrosiphum rosae, that feeds on roses and related plants.
- rough spin — hard or unfair treatment
- rupicolous — rupestrine.
- russophile — a person who is friendly to, admires, or prefers Russia or Russian customs, institutions, etc.