8-letter words containing o, p, s, i
- positron — an elementary particle having the same mass and spin as an electron but having a positive charge equal in magnitude to that of the electron's negative charge; the antiparticle of the electron.
- possible — that may or can be, exist, happen, be done, be used, etc.: a disease with no possible cure.
- possibly — perhaps; maybe: It may possibly rain today.
- postdive — following a dive, esp a scuba dive
- postfire — of or relating to the period after a fire
- postical — (of the position of plant parts) behind another part; posterior
- postiche — superadded, especially inappropriately, as a sculptural or architectural ornament.
- posticum — epinaos.
- postmill — a windmill with machinery mounted on a frame that turns in its entirety to face the wind.
- postnati — those born after a particular event, esp in Scotland after the union with England or in the US after the Declaration of Independence
- postpaid — envelope, card: prepaid
- postriot — of or relating to the period after a riot
- potassic — of, relating to, or containing potassium.
- poxvirus — any of a group of large, brick-shaped DNA-containing viruses that infect humans and other animals, including the viruses of smallpox and various other poxes.
- prazosin — a white crystalline substance, C 1 9 H 2 1 N 5 O 4 , used in the treatment of hypertension.
- precious — of high price or great value; very valuable or costly: precious metals.
- presidio — a garrisoned fort; military post.
- pression — an act of pressing
- previous — coming or occurring before something else; prior: the previous owner.
- previsor — to foresee.
- primrose — Archibald Philip, 5th Earl of Rosebery, Rosebery, Archibald Philip Primrose, 5th Earl of.
- primrosy — characteristic of, or resembling, a primrose (esp in colour)
- prioress — a woman holding a position corresponding to that of a prior, sometimes ranking next below an abbess.
- prismoid — a solid having sides that are trapezoids and bases or ends that are parallel and similar but not congruent polygons. Compare prism (def 2).
- prisoner — a person who is confined in prison or kept in custody, especially as the result of legal process.
- proggins — a university proctor
- promised — a declaration that something will or will not be done, given, etc., by one: unkept political promises.
- promisee — a person to whom a promise is made.
- promisor — a person who makes a promise.
- propolis — a reddish resinous cement collected by bees from the buds of trees, used to stop up crevices in the hives, strengthen the cells, etc.
- prosaism — prosaic character or style.
- prosaist — a person who writes prose.
- prosodic — the science or study of poetic meters and versification.
- protasis — the clause expressing the condition in a conditional sentence, in English usually beginning with if. Compare apodosis.
- proteins — Biochemistry. any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the diet of all animals and other nonphotosynthesizing organisms, composed of 20 or more amino acids linked in a genetically controlled linear sequence into one or more long polypeptide chains, the final shape and other properties of each protein being determined by the side chains of the amino acids and their chemical attachments: proteins include such specialized forms as collagen for supportive tissue, hemoglobin for transport, antibodies for immune defense, and enzymes for metabolism.
- protista — a taxonomic kingdom comprising the protists.
- protists — any of various one-celled organisms, classified in the kingdom Protista, that are either free-living or aggregated into simple colonies and that have diverse reproductive and nutritional modes, including the protozoans, eukaryotic algae, and slime molds: some classification schemes also include the fungi and the more primitive bacteria and blue-green algae or may distribute the organisms between the kingdoms Plantae and Animalia according to dominant characteristics.
- proudish — rather proud
- provirus — a viral form that is incorporated into the genetic material of a host cell.
- provisor — a purveyor
- provisos — a clause in a statute, contract, or the like, by which a condition is introduced.
- prowfish — a fish, Zaprora silenus, of the North Pacific.
- pruinose — covered with a frostlike bloom or powdery secretion, as a plant surface.
- psilocin — a psilocybin metabolite with strong hallucinogenic potency, produced after ingestion of the mushroom Psilocybe mexicana.
- psilosis — a falling out of the hair.
- psilotic — of or relating to a disease of the small intestine
- psionics — the study of the practical use of psychic powers
- psorosis — a disease of citrus trees, characterized by a scaly, rough bark, yellow-flecked leaves, and stunting, caused by a virus.
- psychoid — the innate impetus to perform actions
- ptilosis — the falling out of eye lashes