9-letter words containing i, l, e, o
- oil gauge — a device which indicates whether levels of lubricant in a vehicle or machine are high or low
- oil level — the amount of lubricant in a vehicle or machine (sometimes indicated by an oil guage)
- oil press — a device for extracting oil from plant material, esp. olives
- 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 stove — a heating device that burns oil (typically either paraffin or fuel oil)
- oil-fired — Oil-fired heating systems and power stations use oil as a fuel.
- oil-paper — a paper made waterproof and translucent by treatment with oil.
- oilfields — Plural form of oilfield.
- old delhi — Delhi (def 2).
- old field — land no longer under cultivation because the fertility of the soil has been exhausted.
- old media — the media in existence before the arrival of the internet, such as newspapers, books, television, and cinema
- old river — a river bed left dry because the river has changed its course.
- old timer — a person whose residence, membership, or experience began long ago and has been continuing for a considerable length of time; veteran.
- old-timer — a person whose residence, membership, or experience began long ago and has been continuing for a considerable length of time; veteran.
- old-timey — belonging to or characteristic of former times, usually eliciting a sentimental yearning for the past; old-time: an inn with charming, old-timey details.
- oleanolic — Of or pertaining to oleanolic acid or its derivatives.
- oleoresin — a mixture of an essential oil and a resin, found in nature.
- olfactive — Of or pertaining to the sense of smell; olfactory.
- oligaemia — a reduction in the volume of the blood, as occurs after haemorrhage
- oligocene — noting or pertaining to an epoch of the Tertiary Period, occurring from 40 to 25 million years ago.
- oligogene — a gene that produces or significantly affects the expression of a qualitative heritable characteristic, acting either alone or with a few other genes.
- oligomers — Plural form of oligomer.
- olive oil — an oil expressed from the olive fruit, used in cooking, in salad dressings, in medicine, etc.
- olivenite — a mineral, basic copper arsenate, Cu 4 As 2 O 8 (OH) 2 , occurring in crystals and in masses, usually olive-green in color.
- olivewood — the wood of the olive tree
- omissible — capable of being or allowed to be omitted.
- on a line — in the same plane; level
- on relief — alleviation, ease, or deliverance through the removal of pain, distress, oppression, etc.
- one-liner — a brief joke or amusing remark.
- onionlike — Resembling an onion or some aspect of one, such as its shape, flavour, or layered structure.
- open-line — (of a radio or TV show) maintaining open telephone lines to permit listeners or viewers to phone a program with comments, questions, requests, etc.; call-in.
- ophiolite — an assemblage of mafic igneous rocks representing remnants of former oceanic crust.
- oppilated — Simple past tense and past participle of oppilate.
- orderlies — arranged or disposed in a neat, tidy manner or in a regular sequence: an orderly desk.
- orientals — Plural form of oriental.
- oriflamme — the red banner of St. Denis, near Paris, carried before the early kings of France as a military ensign.
- 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.
- orwellian — of, pertaining to, characteristic of, or resembling the literary work of George Orwell or the totalitarian future described in his antiutopian novel 1984 (1949).
- oscillate — to swing or move to and fro, as a pendulum does.
- ostealgia — (pathology) bone pain.
- otologies — Plural form of otology.
- ottrelite — a brittle mica containing manganese and similar to margarite in physical and chemical properties.
- oubliette — a secret dungeon with an opening only in the ceiling, as in certain old castles.
- outfields — Plural form of outfield.
- outlinear — relating to an outline
- outliners — Plural form of outliner.
- outsailed — Simple past tense and past participle of outsail.
- overbills — Third-person singular simple present indicative form of overbill.