7-letter words containing i, p, r, o
- prostie — a prostitute.
- proteid — 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.
- 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.
- protist — 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.
- protium — the lightest and most common isotope of hydrogen. Symbol: H 1.
- provide — to make available; furnish: to provide employees with various benefits.
- provine — to plant (a vine) in preparation for propagation
- proviso — a clause in a statute, contract, or the like, by which a condition is introduced.
- proxima — a flare star in the constellation Centaurus that is the nearest star to the sun. It is a red dwarf of very low magnitude. Distance: 4.3 light years
- proximo — in, of, or during the next month: on the 10th proximo. Compare instant (def 11), ultimo.
- prurigo — a skin condition characterized by itching papules.
- pterion — the craniometric point at the side of the sphenoidal fontanelle.
- purloin — to take dishonestly; steal; filch; pilfer.
- pyloric — the opening between the stomach and the duodenum.
- pyronin — either of two synthetic red xanthene dyes, pyronin G or Y and pyronin B, used chiefly as microscopic stains
- pyrosis — heartburn (def 1).
- 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
- reposit — to put back; replace.
- rip off — a rent made by ripping; tear.
- rip-off — a rent made by ripping; tear.
- ripcord — a cord on a parachute that, when pulled, opens the parachute for descent.
- ripieno — tutti (defs 3, 4).
- riposte — a quick, sharp return in speech or action; counterstroke: a brilliant riposte to an insult.
- ripstop — a type of woven fabric that is resistant against tears and rips
- rompish — given to romping; frolicsome.
- 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.
- rosehip — hip2 .
- roupily — in a roupy manner
- scorpio — Astronomy. Scorpius.
- semipro — semiprofessional
- serpigo — (formerly) a creeping or spreading skin disease, as ringworm.
- shapiro — Karl (Jay) 1913–2000, U.S. poet and editor.
- sparoid — resembling or pertaining to the porgy family, Sparidae.
- spiroid — more or less spiral; resembling a spiral.
- spoiler — a person or thing that spoils.
- 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.
- sporoid — of or like a spore
- sportif — sporty
- topiary — (of a plant) clipped or trimmed into fantastic shapes.
- toprail — the uppermost rail of the back of a chair or the like; a crest rail.
- torpids — a series of boat races held at Oxford University
- tripody — a measure of three feet.
- tripoli — Ancient Geography. the part of N Africa W of Egypt.
- tropaia — a tropaeum, especially in Greece.
- trophic — of or relating to nutrition; concerned in nutritive processes.
- tropics — The tropics are the parts of the world that lie between two lines of latitude, the tropic of Cancer, 23½° north of the equator, and the tropic of Capricorn, 23½° south of the equator.
- tropine — a white, crystalline, hygroscopic, water-soluble, poisonous alkaloid, C 8 H 15 NO, obtained chiefly by the hydrolysis of atropine or hyoscyamine.
- tropism — an orientation of an organism to an external stimulus, as light, especially by growth rather than by movement.
- tropist — someone who uses tropes