18-letter words containing a, b, o, r, l
- oriental alabaster — alabaster (def 2).
- 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.
- 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.
- probability theory — the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Compare probability (def 4).
- provably difficult — The set or property of problems for which it can be proven that no polynomial-time algorithm exists, only exponential-time algorithms.
- public corporation — a corporation, owned and operated by a government, established for the administration of certain public programs.
- 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-foot clover — a plant, Trifolium arvense, having trifoliate leaves with narrow leaflets and fuzzy, cylindrical, grayish-pink flower heads.
- ragtag and bobtail — the riffraff; rabble: The ragtag and bobtail of every nation poured into the frontier in search of gold.
- range of stability — the angle to the perpendicular through which a vessel may be heeled without losing the ability to right itself.
- reggio di calabria — a seaport in S Italy, on the Strait of Messina: almost totally destroyed by an earthquake 1908.
- relational algebra — (database, theory) A family of algebra with a well-founded semantics used for modelling the data stored in relational databases, and defining queries on it. The main operations of the relational algebra are the set operations (such as union, intersection, and cartesian product), selection (keeping only some lines of a table) and the projection (keeping only some columns). The relational data model describes how the data is structured.
- rheims-douay bible — Douay Bible.
- rosebay willowherb — a perennial onagraceous plant, Chamerion (formerly Epilobium) angustifolium, that has spikes of deep pink flowers and is widespread in open places throughout N temperate regions
- schofield barracks — a town on central Oahu, in central Hawaii.
- selective abortion — the aborting of particular embryos for medical or social reasons
- september holidays — a period of time in September when people do not have to go to school, college or work
- sindbad the sailor — (in The Arabian Nights' Entertainments), a wealthy citizen of Baghdad who relates the adventures of his seven wonderful voyages.
- small pastern bone — the part of the foot of a horse, cow, etc., between the fetlock and the hoof.
- social bookmarking — the practice of saving bookmarked Web pages to a public website as a way to share the links with other Internet users: Social bookmarking is a tool that allows you to add tags and comments to your bookmarks.
- software backplane — (programming, tool) A CASE framework from Atherton.
- solomon rabinowitz — Solomon, Aleichem, Sholom.
- stationary bicycle — an exercise bike
- subatomic particle — physics:
- subordinate clause — a clause that modifies the principal clause or some part of it or that serves a noun function in the principal clause, as when she arrived in the sentence I was there when she arrived or that she has arrived in the sentence I doubt that she has arrived.
- supraorbital ridge — browridge.
- task control block — (architecture) An MVS control block used to communicate information about tasks within an address space that are connected to an MVS subsystem such as MQSeries for MVS/ESA or CICS.
- tectorial membrane — membrane in the inner ear that covers the organ of Corti
- the bird has flown — the person in question has fled or escaped
- thermonuclear bomb — hydrogen bomb.
- to bare one's soul — If you bare your soul, you tell someone your most secret thoughts and feelings.
- too clever by half — If someone is too clever by half, they are very clever and they show their cleverness in a way that annoys other people.
- treaty obligations — obligations or duties that must be carried out by a party as according to a treaty they have entered into
- trobriand islander — a native or inhabitant of the Trobriand Islands of Papua New Guinea
- turbine ventilator — a ventilator, usually mounted on the roof of a building, deck of a ship, etc., having at its head a globular, vaned rotor that is rotated by the wind, conveying air through a duct to and from a chamber below.
- voluntary abortion — abortion (def 1).
- voluntary-abortion — Also called voluntary abortion. the removal of an embryo or fetus from the uterus in order to end a pregnancy.
- women's liberation — a movement to combat sexual discrimination and to gain full legal, economic, vocational, educational, and social rights and opportunities for women, equal to those of men.