9-letter words containing s, i, l, o
- ogreishly — in the manner of an ogre
- oil press — a device for extracting oil from plant material, esp. olives
- oil sands — a sand or sandstone containing oil or tarry residue in the pore spaces.
- oil shale — a black or dark-brown shale or siltstone rich in bitumens, from which shale oil is obtained by destructive distillation.
- oil sheik — a sheik who is involved in or who controls the supply of petroleum from Arab countries to other countries
- oil slick — a smooth area on the surface of water caused by the presence of oil.
- oil spill — an accidental release of oil into a body of water, as from a tanker, offshore drilling rig, or underwater pipeline, often presenting a hazard to marine life and the environment.
- oil stove — a heating device that burns oil (typically either paraffin or fuel oil)
- oilfields — Plural form of oilfield.
- oily fish — any variety of fish, such as the sardine, mackerel, salmon or trout; that has oils throughout its body rather than stored solely in the liver
- old irish — the Irish language before c900. Abbreviation: OIr.
- oleoresin — a mixture of an essential oil and a resin, found in nature.
- olfactics — The study of smells and how they are perceived.
- oligarchs — Plural form of oligarch.
- oligomers — Plural form of oligomer.
- olympiads — Plural form of olympiad.
- ominously — portending evil or harm; foreboding; threatening; inauspicious: an ominous bank of dark clouds.
- omissible — capable of being or allowed to be omitted.
- on-limits — open or not prohibited to certain persons, as military personnel: an on-limits area.
- oncolysis — the destruction of tumours
- orderlies — arranged or disposed in a neat, tidy manner or in a regular sequence: an orderly desk.
- orientals — Plural form of oriental.
- originals — Plural form of original.
- orleanais — a former province in N France. Capital: Orléans.
- orleanist — a supporter of the Orléans branch of the former French royal family and of its claim to the throne of France through descent from the younger brother of Louis XIV.
- oscillate — to swing or move to and fro, as a pendulum does.
- osmically — with regard to smell
- ossiculum — (anatomy) An ossicle.
- ostealgia — (pathology) bone pain.
- otologies — Plural form of otology.
- otologist — A doctor specializing in otology. (from 19th c.).
- oughtlins — in the least; to the least degree.
- outfields — Plural form of outfield.
- outliners — Plural form of outliner.
- outsailed — Simple past tense and past participle of outsail.
- overbills — Third-person singular simple present indicative form of overbill.
- overspill — to spill over.
- paesiello — Giovanni [Italian jaw-vahn-nee] /Italian dʒɔˈvɑn ni/ (Show IPA), Paisiello, Giovanni.
- paisiello — Giovanni [jaw-vahn-nee] /dʒɔˈvɑn ni/ (Show IPA), 1741–1816, Italian composer.
- panlogism — the doctrine that the universe is a realization or act of the logos.
- papillose — full of papillae.
- passional — of, relating to, or marked by passion.
- pelopidas — died 364 b.c, Greek general and statesman of Thebes.
- pelorised — affected by peloria
- pergolesi — Giovanni Battista [jaw-vahn-nee baht-tees-tah] /dʒɔˈvɑn ni bɑtˈtis tɑ/ (Show IPA), 1710–36, Italian composer.
- peribolos — a colonnade or wall surrounding a Classical temple
- phaseolin — a type of proteid that is present in the kidney bean
- phenolics — any of the class of thermosetting resins formed by the condensation of phenol, or of a phenol derivative, with an aldehyde, especially formaldehyde: used chiefly in the manufacture of paints and plastics and as adhesives for sandpaper and plywood.
- philhorse — the horse, in a group of horses that are used to pull a carriage etc, which is at the back and nearest the object being pulled
- pianolist — a person who plays the Pianola