7-letter words containing i, o, s
- orpines — Plural form of orpine.
- osiered — covered with osiers
- osirian — the king and judge of the dead, the husband and brother of Isis, and father (or brother) of Horus, killed by Set but later resurrected (after Horus killed Set): usually depicted as a man, partly wrapped as a mummy, having a beard and wearing the atef-crown.
- osman i — 1259–1326, Turkish sultan; founder of the Ottoman Empire
- osmanli — an Ottoman.
- osmatic — of or relating to the sense of smell.
- osmious — of or containing osmium in its lower valences.
- osmosis — Physical Chemistry, Cell Biology. the tendency of a fluid, usually water, to pass through a semipermeable membrane into a solution where the solvent concentration is higher, thus equalizing the concentrations of materials on either side of the membrane. the diffusion of fluids through membranes or porous partitions. Compare endosmosis, exosmosis.
- osmotic — Physical Chemistry, Cell Biology. the tendency of a fluid, usually water, to pass through a semipermeable membrane into a solution where the solvent concentration is higher, thus equalizing the concentrations of materials on either side of the membrane. the diffusion of fluids through membranes or porous partitions. Compare endosmosis, exosmosis.
- ossetia — a region in Caucasia: divided between North Ossetia of the Russian Federation and the South Ossetian Autonomous Region of the Georgian Republic.
- ossetic — Ossetian.
- ossicle — a small bone.
- ossific — Capable of producing bone; having the power to change cartilage or other tissue into bone.
- osteoid — resembling bone; bonelike.
- osteria — An Italian restaurant, typically a simple or inexpensive one.
- ostiary — Also called doorkeeper, porter. Roman Catholic Church. a member of the lowest-ranking of the four minor orders. the order itself. Compare acolyte (def 2), exorcist (def 2), lector (def 2).
- ostiate — characterized by having ostia
- ostiole — Biology. a small opening or pore, especially in the fruiting body of a fungus.
- ostosis — the formation of bone; ossification.
- ostrich — a large, two-toed, swift-footed flightless bird, Struthio camelus, indigenous to Africa and Arabia, domesticated for its plumage: the largest of living birds.
- ouraris — curare.
- ousting — to expel or remove from a place or position occupied: The bouncer ousted the drunk; to oust the prime minister in the next election.
- oustiti — a device for opening a locked door from the outside
- outbids — Third-person singular simple present indicative form of outbid.
- outfish — to catch more fish than
- outfits — Plural form of outfit.
- outings — Plural form of outing.
- outjies — Plural form of outjie.
- outkiss — to exceed in kissing
- outsail — to outdo in sailing; sail farther, more skillfully, or faster than.
- outside — the outer side, surface, or part; exterior: The outside of the house needs painting.
- outsing — to sing better than.
- outsits — Third-person singular simple present indicative form of outsit.
- outsize — an uncommon or irregular size, especially one larger than average.
- outswim — (transitive) To swim faster than.
- outvies — Third-person singular simple present indicative form of outvie.
- outwish — to wish more or more strongly than
- outwits — Third-person singular simple present indicative form of outwit.
- ovaries — Anatomy, Zoology. the female gonad or reproductive gland, in which the ova and the hormones that regulate female secondary sex characteristics develop.
- ovonics — a device whose operation is based on the Ovshinsky effect.
- owenism — the socialistic philosophy of Robert Owen.
- oxidase — any of a class of oxidoreductases that catalyze the oxidation of a substrate by molecular oxygen with the formation, in most cases, of hydrogen peroxide.
- oxidise — to convert (an element) into an oxide; combine with oxygen.
- paisano — paisan.
- parison — a partially shaped mass of molten glass.
- parotis — a parotid gland
- passion — any powerful or compelling emotion or feeling, as love or hate.
- peneios — Modern Greek name of Salambria.
- pension — a fixed amount, other than wages, paid at regular intervals to a person or to the person's surviving dependents in consideration of past services, age, merit, poverty, injury or loss sustained, etc.: a retirement pension.
- peshito — the standard translation of the Old and New Testaments in ancient Syriac