18-letter words containing a, b, t, e, r
- lowell observatory — the astronomical observatory, situated in Flagstaff, Arizona, at which Pluto was discovered in 1930.
- macroinvertebrates — Plural form of macroinvertebrate.
- mandelbrot, benoit — Benoit Mandelbrot
- manufacturing base — the manufacturing industries of an area or a country considered as a unit and a constituent part of the economy
- master boot record — (operating system, storage) A special area on a computer's main hard disk that gives the location of the disk's boot block or bootable partition where the operating system is installed.
- membrane transport — the process by which physiologically important substances, such as calcium ions, sugars, etc, are conveyed across a biological membrane
- metabolic syndrome — Pathology. a group of medical conditions present simultaneously in a patient, as high blood pressure, low HDL cholesterol levels, and an excess of abdominal fat, that increases a person's risk of heart disease, stroke, and diabetes. Also called insulin resistance syndrome.
- microinvertebrates — Plural form of microinvertebrate.
- motor torpedo boat — PT boat.
- mountain cranberry — cowberry
- moving bed reactor — A moving bed reactor is a reactor in which a layer of catalyst in the form of granules is moved between a reaction area and a regeneration area.
- napoleon bonaparte — Jérôme [juh-rohm;; French zhey-rohm] /dʒəˈroʊm;; French ʒeɪˈroʊm/ (Show IPA), 1784–1860, king of Westphalia 1807 (brother of Napoleon I).
- nebular hypothesis — the theory that the solar system evolved from a mass of nebular matter: prominent in the 19th century following its precise formulation by Laplace.
- neighborhood watch — a neighborhood surveillance program or group in which residents keep watch over one another's houses, patrol the streets, etc., in an attempt to prevent crime.
- net book agreement — a former agreement between UK publishers and booksellers that until 1995 prohibited booksellers from undercutting the price of books sold in bookshops
- neural tube defect — any of a group of congenital abnormalities involving the brain and spinal cord, including spina bifida and meningocele, caused by failure of the neural tube to close properly during embryonic development.
- nobiliary particle — a preposition forming part of a title of nobility or surname, as French de or German von.
- non-understandable — capable of being understood; comprehensible.
- noninterchangeable — That cannot be interchanged with another.
- north attleborough — a city in SE Massachusetts.
- northeast by north — a point on the compass 11°15′ north of northeast. Abbreviation: NEbN.
- not breathe a word — to take air, oxygen, etc., into the lungs and expel it; inhale and exhale; respire.
- nuclear capability — If a country has nuclear capability, it is able to produce nuclear power and usually nuclear weapons.
- obedience training — the training of an animal, especially a dog, to obey certain commands.
- object-orientation — object-oriented
- octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
- on the back burner — low priority
- one's heart bleeds — used to express sympathetic grief, but often used ironically
- optical brightener — an additive that dyes and brightens fabric or paper
- oriental alabaster — alabaster (def 2).
- pattern bargaining — a collective bargaining technique in which contract terms in one settlement are used as models to be imposed on other negotiating parties within an industry.
- payment by results — a system of wage payment whereby all or part of the wage varies systematically according to the level of work performance of an employee
- pileolated warbler — either of two western subspecies of Wilson's warbler.
- plumber's merchant — a shop or business that sells things needed for the job of installing and repairing pipes, fixtures, etc, for water, drainage, and gas
- 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.
- precipitable water — the total water vapor contained in a unit vertical column of the atmosphere.
- 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).
- 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.
- pyramus and thisbe — (in Greek legend) two lovers of Babylon: Pyramus, wrongly supposing Thisbe to be dead, killed himself and she, encountering him in his death throes, did the same
- rabbit's-foot fern — hare's-foot fern.
- rabbit-foot clover — a plant, Trifolium arvense, having trifoliate leaves with narrow leaflets and fuzzy, cylindrical, grayish-pink flower heads.
- rabbit-proof fence — a fence through which rabbits are unable to pass
- range of stability — the angle to the perpendicular through which a vessel may be heeled without losing the ability to right itself.
- 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.
- remains to be seen — If you say that it remains to be seen whether something will happen, you mean that nobody knows whether it will happen.
- reverberation time — the time it takes for a sound made in a room to diminish by 60 decibels.
- risk based testing — (testing) Testing based on identification of potential risks (or "candidate risks"), which should be analysed by the project stakeholder or which might appear during the project's development.
- row address strobe — (storage) (RAS) An input to a dynamic random-access memory (DRAM) to indicate that the row address lines are valid.