18-letter words containing a, b, c, o
- optical brightener — an additive that dyes and brightens fabric or paper
- passive vocabulary — all the words, collectively, that a person can understand
- political football — a political issue that is continually debated but has not yet been resolved
- population balance — A population balance is a model showing particle sizes during a grinding process, which is used when designing a process.
- 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.
- 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.
- public examination — an examination, such as a GCSE exam, that is set by a central examining board
- publishing company — a firm which publishes books
- put a bold face on — to seem bold or confident about
- put the clock back — to regress
- 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
- radio range beacon — a radio transmitter that utilizes two or more directional antennas and transmits signals differing with direction, permitting a flier receiving a signal to determine his or her approximate bearing from the transmitter without a radio compass.
- radiocarbon dating — the determination of the age of objects of organic origin by measurement of the radioactivity of their carbon content.
- reggio di calabria — a seaport in S Italy, on the Strait of Messina: almost totally destroyed by an earthquake 1908.
- schofield barracks — a town on central Oahu, in central Hawaii.
- scottish blackface — a common breed of hardy mountain sheep having horns and a black face, kept chiefly on the mainland of Scotland
- selective abortion — the aborting of particular embryos for medical or social reasons
- significant symbol — a verbal or nonverbal gesture, as a word or smile, that has acquired a conventionalized meaning.
- slobodan milosevic — Slobodan [sloh-buh-dain] /ˈsloʊ bəˌdɛən/ (Show IPA), 1941–2006, Yugoslav and Serbian politician: president of Serbia 1989–97, president of the Federal Republic of Yugoslavia 1997–2000, accused of war crimes 2001.
- 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.
- sodium bicarbonate — a white, crystalline, water-soluble solid, in powder or granules, NaHCO 3 , usually prepared by the reaction of soda ash with carbon dioxide or obtained from the intermediate product of the Solvay process by purification: used chiefly in the manufacture of sodium salts, baking powder, and beverages, as a laboratory reagent, as a fire extinguisher, and in medicine as an antacid.
- software backplane — (programming, tool) A CASE framework from Atherton.
- stationary bicycle — an exercise bike
- stomach sweetbread — sweetbread (def 1).
- sub-classification — to arrange in subclasses.
- 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.
- subsidiary company — a company whose controlling interest is owned by another company.
- 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
- television cabinet — a cabinet on which a television set is placed or in which it is encased
- the back of beyond — a very remote place
- the black mountain — a mountain range in S Wales, in E Carmarthenshire and W Powys. Highest peak: Carmarthen Van, 802 m (2632 ft)
- thermonuclear bomb — hydrogen bomb.
- tick all the boxes — to satisfy all of the apparent requirements for success
- to be caught short — If you are caught short or are taken short, you feel a sudden strong need to urinate, especially when you cannot easily find a toilet.
- 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.
- turn one's back on — the rear part of the human body, extending from the neck to the lower end of the spine.
- two-chamber system — the system of having two parliamentary chambers, as the House of Lords and the House of Commons in the United Kingdom
- under the jackboot — If a country or group of people is under the jackboot, they are suffering because the government is cruel and undemocratic.
- urban contemporary — popular dance music incorporating elements of rap, rhythm-and-blues, funk, and soul.
- what has become of — If you wonder what has become of someone or something, you wonder where they are and what has happened to them.
- widemouth blindcat — any of several catfishes, as Satan eurystomus (widemouth blindcat) of Texas, that inhabit underground streams and have undeveloped eyes and unpigmented skin.
- wingback formation — single wingback formation.