9-letter words containing o, p, i, n, a
- potential — possible, as opposed to actual: the potential uses of nuclear energy.
- preaction — the process or state of acting or of being active: The machine is not in action now.
- predation — depredation; plundering.
- predomain — (theory) A domain with no bottom element.
- prelation — the setting of one above another
- prenomina — praenomen.
- preobtain — to obtain in advance
- preordain — to ordain beforehand; foreordain.
- privation — lack of the usual comforts or necessaries of life: His life of privation began to affect his health.
- proaction — the process or state of acting or of being active: The machine is not in action now.
- probation — the act of testing.
- profanity — the quality of being profane; irreverence.
- prolactin — an anterior pituitary polypeptide hormone that stimulates lactation by the mammary glands at parturition in mammals, the activity of the crop in birds, and in some mammalian species the production of progesterone by the corpus luteum.
- prolamine — any of the class of simple proteins, as gliadin, hordein, or zein, found in grains, soluble in dilute acids, alkalis, and alcohols, and insoluble in water, neutral salt solutions, and absolute alcohol.
- prolation — the time relationship between a semibreve and a minim in mensural notation.
- promazine — a compound, C 17 H 20 N 2 S, used as a tranquilizer.
- pronation — rotation of the hand or forearm so that the surface of the palm is facing downward or toward the back (opposed to supination).
- prorating — to make an arrangement on a basis of proportional distribution.
- proration — to make an arrangement on a basis of proportional distribution.
- prosimian — belonging or pertaining to the primate suborder Prosimii, characterized by nocturnal habits, a long face with a moist snout, prominent whiskers, large mobile ears, and large, slightly sideways-facing eyes, comprising the lemur, loris, potto, bush baby, and aye-aye. Compare anthropoid.
- prosodian — a person skilled in prosody
- protamine — any of a group of arginine-rich, strongly basic proteins that are not coagulated by heat, occurring primarily in the sperm of fish.
- protistan — 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.
- proustian — of, relating to, or resembling Marcel Proust, his writings, or the middle-class and aristocratic worlds he described.
- ptomainic — causing or resulting from ptomaines
- pulsation — the act of pulsating; beating or throbbing.
- purgation — the act of purging.
- pygmalion — Classical Mythology. a sculptor and king of Cyprus who carved an ivory statue of a maiden and fell in love with it. It was brought to life, in response to his prayer, by Aphrodite.
- pyramidon — a pedal organ stop made of wooden pipes in the shape of an inverted pyramid
- pyromania — a compulsion to set things on fire.
- rainproof — impervious to rain; keeping out or unaffected by rain: a rainproof cover; a rainproof coat.
- rainspout — waterspout (def 1).
- rantipole — wild, reckless, boisterous
- reappoint — to name or assign to a position, an office, or the like; designate: to appoint a new treasurer; to appoint a judge to the bench.
- recaption — the taking back without violence of one's property or a member of one's family or household unlawfully in the possession or custody of another.
- reptation — a creeping motion; the act of crawling
- rhapontic — a type of rhubarb
- salpingo- — indicating the Fallopian tubes
- sapogenin — a crystalline substance derived from saponin
- septation — a division between cavities or parts of an organism by partitions or septa
- singapore — an island on the Strait of Singapore, off the S tip of the Malay Peninsula.
- siphonage — the action of a siphon.
- siphonate — (of molluscs) having a syphon
- sophonias — Zephaniah.
- sopranino — a musical instrument, as a saxophone or recorder, that is a pitch higher than the soprano instrument of its class.
- spiration — the act of breathing
- spoilsman — a person who seeks or receives a share in political spoils.
- sponsalia — marriage; espousals
- sporangia — the case or sac in which spores are produced.
- stenopaic — (of an optic device) having a narrow opening devised to improve eyesight by limiting obscurations