7-letter words containing p, i, o, n
- promine — a substance promoting cell growth
- propine — to offer as a present.
- protein — 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.
- provine — to plant (a vine) in preparation for propagation
- psionic — of or relating to psychic powers
- pterion — the craniometric point at the side of the sphenoidal fontanelle.
- pulsion — the act of driving forward
- purloin — to take dishonestly; steal; filch; pilfer.
- pyronin — either of two synthetic red xanthene dyes, pyronin G or Y and pyronin B, used chiefly as microscopic stains
- rampion — a European bellflower, Campanula rapunculus, having an edible white tuberous root used in Europe for salad.
- repoint — to repair the joints of (brickwork, masonry, etc) with mortar or cement
- ripieno — tutti (defs 3, 4).
- rope in — a strong, thick line or cord, commonly one composed of twisted or braided strands of hemp, flax, or the like, or of wire or other material.
- saponin — any of a group of amorphous glycosides of terpenes and steroids, occurring in many plants, characterized by an ability to form emulsions and to foam in aqueous solutions, and used as detergents.
- scoping — extent or range of view, outlook, application, operation, effectiveness, etc.: an investigation of wide scope.
- senopia — the improvement of near-sight often accompanying old age due to nuclear sclerosis
- shippon — a cow barn or cattle shed.
- simplon — a mountain pass in S Switzerland, in the Lepontine Alps: crossed by a carriage road constructed 1800–06 on Napoleon's orders. 6592 feet (2010 meters) high.
- simpson — James Young, 1811–70, Scottish professor of obstetrics and obstetrician: pioneer in use of ether and chloroform as anesthetics.
- sinopia — a reddish pigment derived from iron ore
- sinopis — a red ocher, used from antiquity to the Middle Ages.
- siphnos — a Greek island in the SW Aegean Sea, in the Cyclades group: gold and silver mines. 28 sq. mi. (75 sq. km).
- skipton — a market town in N England, in North Yorkshire: 11th-century castle. Pop: 14 313 (2001)
- slip-on — made without buttons, straps, zippers, etc., so as to be put on easily and quickly: a slip-on blouse; slip-on shoes.
- sloping — to have or take an inclined or oblique direction or angle considered with reference to a vertical or horizontal plane; slant.
- sonship — the state, fact, or relation of being a son.
- sopping — soaked; drenched: Her clothes were sopping from the rain.
- soupfin — a requiem shark, Galeorhinus zyopterus, inhabiting the Pacific Ocean, valued for its fins, which are used by the Chinese in the preparation of a soup, and for its liver, which is rich in vitamin A.
- spinode — cusp (def 3).
- spinoff — the act of causing a spinning or whirling motion.
- spinose — full of spines; spiniferous; spinous.
- spinous — covered with or having spines; thorny, as a plant.
- spinout — a spinning slide or skid by a motor vehicle that is out of control
- spinoza — Baruch [buh-rook] /bəˈruk/ (Show IPA), or Benedict de [ben-uh-dikt duh] /ˈbɛn ə dɪkt də/ (Show IPA), 1632–77, Dutch philosopher.
- spoking — a simple past tense of speak.
- spongin — a scleroprotein occurring in the form of fibers that form the skeleton of certain sponges.
- sporing — Biology. a walled, single- to many-celled, reproductive body of an organism, capable of giving rise to a new individual either directly or indirectly.
- spumoni — an Italian style of ice cream of a very fine and smooth texture, usually containing layers of various colors and flavors and chopped fruit or nuts.
- stop in — to cease from, leave off, or discontinue: to stop running.
- stoping — any excavation made in a mine, especially from a steeply inclined vein, to remove the ore that has been rendered accessible by the shafts and drifts.
- tampion — a plug or stopper placed in the muzzle of a piece of ordnance when not in use, to keep out dampness and dust.
- timpano — a kettledrum
- tin-pot — inferior; paltry; shoddy.
- tompion — tampion.
- topline — so important as to be named at or near the top of a newspaper item, advertisement, or the like: a topline actress; topline news.
- topping — the highest or loftiest point or part of anything; apex; summit. Synonyms: zenith, acme, peak, pinnacle, vertex. Antonyms: bottom, base, foot, lowest point.
- topspin — a spinning motion imparted to a ball that causes it to rotate forward.
- tropine — a white, crystalline, hygroscopic, water-soluble, poisonous alkaloid, C 8 H 15 NO, obtained chiefly by the hydrolysis of atropine or hyoscyamine.
- typicon — the instructions for the orders of the services during the ecclesiastical year, contained in a manual.
- upsilon — the 20th letter of the Greek alphabet (Υ, υ).