18-letter words containing o, p, e, r, a, b
- open pandora's box — If someone or something opens Pandora's box or opens a Pandora's box, they do something that causes a lot of problems to appear that did not exist or were not known about before.
- optical brightener — an additive that dyes and brightens fabric or paper
- passive vocabulary — all the words, collectively, that a person can understand
- personal bodyguard — a person employed to protect a particular person
- pileolated warbler — either of two western subspecies of Wilson's warbler.
- point-bearing pile — a pile depending on the soil or rock beneath its foot for support.
- portable equipment — Portable equipment is electrical equipment that can easily be moved from one place to another while in operation or while connected to the supply.
- prairie wake-robin — a woodland trillium, Trillium recurvatum, of the central U.S., having purple-mottled leaves and brown-purple flowers.
- prepositional verb — a combination of verb and preposition, often with idiomatic meaning, differing from other phrasal verbs in that an object must always follow the preposition, as take after in The children take after their mother.
- price on sb's head — If there is a price on someone 's head, an amount of money has been offered for the capture or killing of that person.
- probability theory — the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Compare probability (def 4).
- protease inhibitor — a drug that inhibits the action of protease, especially any of a class of antiviral drugs that prevent the cleavage and replication of HIV proteins.
- pulmonary embolism — the blockage of a pulmonary artery, often by a blood clot, that stops the flow of blood to the lungs and which can result in death if untreated
- rabbit-proof fence — a fence through which rabbits are unable to pass
- september holidays — a period of time in September when people do not have to go to school, college or work
- small pastern bone — the part of the foot of a horse, cow, etc., between the fetlock and the hoof.
- software backplane — (programming, tool) A CASE framework from Atherton.
- stroustrup, bjarne — Bjarne Stroustrup
- subatomic particle — physics:
- supraorbital ridge — browridge.
- the better part of — a large part of
- the powers that be — You can refer to people in authority as the powers that be, especially when you want to say that you disagree with them or do not understand what they say or do.
- to get a bad press — If someone or something gets a bad press, they are criticized, especially in the newspapers, on television, or on radio. If they get a good press, they are praised.
- to put years on sb — if you say that something such as an experience or a way of dressing has put years on someone, you mean that it has made them look or feel much older
- to sweep the board — If someone sweeps the board in a competition or election, they win nearly everything that it is possible to win.
- transporter bridge — a bridge for carrying passengers and vehicles by means of a platform suspended from a trolley.
- urban contemporary — popular dance music incorporating elements of rap, rhythm-and-blues, funk, and soul.