10-letter words containing r, e, o, p
- peroxisome — a cell organelle containing catalase, peroxidase, and other oxidative enzymes and performing essential metabolic functions, as the decomposition of fatty acids and hydrogen peroxide.
- peroxyacid — an acid derived from hydrogen peroxide and containing the –O–O– group, as peroxysulfuric acid, H 2 S 2 O 8 .
- persecutor — to pursue with harassing or oppressive treatment, especially because of religious or political beliefs, ethnic or racial origin, gender identity, or sexual orientation.
- persephone — Also, Proserpina, Proserpine. Classical Mythology. a daughter of Zeus and Demeter, abducted by Pluto to be queen of Hades, but allowed to return to the surface of the earth for part of the year.
- persepolis — an ancient capital of Persia: its imposing ruins are in S Iran, about 30 miles (48 km) NE of Shiraz.
- person-day — a unit of measurement, especially in accountancy, based on an ideal amount of work done by one person in one working day.
- personable — of pleasing personal appearance; handsome or comely; attractive.
- personably — of pleasing personal appearance; handsome or comely; attractive.
- personalia — the accoutrements, concerns, or intimations that are personal to one
- personally — through direct contact; in person; directly: I will thank him personally.
- personalty — personal estate or property.
- personhood — the state or fact of being a person.
- personnels — a body of persons employed in an organization or place of work.
- persuasion — the act of persuading or seeking to persuade.
- perversion — the act of perverting.
- pescadores — (used with a plural verb) Penghu.
- pestersome — to bother persistently with petty annoyances; trouble: Don't pester me with your trivial problems.
- petit four — a small teacake, variously frosted and decorated.
- petitioner — a formally drawn request, often bearing the names of a number of those making the request, that is addressed to a person or group of persons in authority or power, soliciting some favor, right, mercy, or other benefit: a petition for clemency; a petition for the repeal of an unfair law.
- petrodrome — an African elephant shrew
- petroglyph — a drawing or carving on rock, made by a member of a prehistoric people.
- petrograph — petroglyph.
- petrol can — a container for carrying petrol
- petrol cap — a small cover that goes over the hole in a vehicle into which you put petrol
- petrolatum — a translucent gelatinous substance obtained from petroleum; used as a lubricant and in medicine as an ointment base and protective dressing
- petroleous — having or consisting of petroleum or an oil obtained from rock
- petroleuse — a female individual who uses petroleum to cause explosions or fires
- petrolhead — a person who is excessively interested in or is devoted to travelling by car
- petromoney — the money that is regarded in terms of income derived from petroleum
- petronella — a type of traditional country dance from Scotland
- petrópolis — a city in SE Brazil, north of Rio de Janeiro: resort. Pop: 280 000 (2005 est)
- petrostate — a small oil-rich country in which institutions are weak and wealth and power are concentrated in the hands of a few
- phanerogam — any of the Phanerogamia, a former primary division of plants comprising those having reproductive organs; a flowering plant or seed plant (opposed to cryptogam).
- phelloderm — a layer of parenchyma produced inwardly by the cork cambium; an inner secondary cortex of the cork cambium.
- phenformin — a biguanide administered orally in the treatment of diabetes to lower blood concentrations of glucose; it has been largely superseded by metformin. Formula: C10H15N5
- phenocryst — any of the conspicuous crystals in a porphyritic rock.
- phenol red — a bright to dark red crystalline compound, C 1 9 H 1 4 O 5 S, slightly soluble in water, alcohol, and acetone: used as an acid-base indicator and as a diagnostic reagent in medicine.
- pheromonal — relating to or constituting a pheromone
- pheromones — any chemical substance released by an animal that serves to influence the physiology or behavior of other members of the same species.
- phlebogram — venogram.
- phloem ray — a vascular ray extending into or located entirely within the secondary phloem.
- phone card — calling card (def 3).
- phoney war — A phoney war is when two opposing groups are openly hostile towards each other, as if they were at war, but there is no real fighting.
- phonometer — a device for measuring the intensity of a sound.
- phonophore — the small bones of the ear which transmit sound vibrations to the internal ear
- phosphuret — a phosphate
- photometer — an instrument that measures luminous intensity or brightness, luminous flux, light distribution, color, etc., usually by comparing the light emitted by two sources, one source having certain specified standard characteristics.
- photometry — the measurement of the intensity of light or of relative illuminating power.
- photophore — a luminous organ found in certain fishes and crustaceans.
- phototrope — a type of robot that either seeks or flees from sources of bright light