19-letter words containing a, l, o, n
- beta-naphthyl group — See under naphthyl.
- betamethyl acrolein — crotonaldehyde.
- big-leaved magnolia — evergreen magnolia.
- bilingual education — schooling in which those not fluent in the standard or national language are taught in their own language.
- binary large object — (database) (BLOB) A large block of data stored in a database, such as an image or sound file. A BLOB has no structure which can be interpreted by the database management system but is known only by its size and location.
- binocular disparity — the small differences in the positions of the parts of the images falling on each eye that results when each eye views the scene from a slightly different position; these differences make stereoscopic vision possible
- binomial experiment — an experiment consisting of a fixed number of independent trials each with two possible outcomes, success and failure, and the same probability of success. The probability of a given number of successes is described by a binominal distribution
- blind carbon (copy) — a carbon copy of a letter sent to someone other than the addressee, with no indication on the original letter that such a copy has been sent
- blood-brain barrier — the barrier created by the walls of the capillaries of the brain that prevents certain substances, as most proteins and drugs, from passing from the blood into the brain tissue and cerebrospinal fluid
- blue-tongued lizard — a large Australian lizard, Tiliqua scincoides, characterized by having a cobalt-blue tongue.
- brazen law of wages — the doctrine or theory that wages tend toward a level sufficient only to maintain a subsistence standard of living.
- briggsian logarithm — common logarithm.
- building contractor — an individual or company that contracts for the construction of houses, etc
- bulbourethral gland — Cowper's gland
- buster brown collar — a medium-sized, starched collar with rounded edges, lying flat on the shoulders, worn by women and girls.
- by leaps and bounds — with unexpectedly rapid progess
- california bluebell — either of two plants, Phacelia campanularia or P. minor, of southern California, having ovate leaves and bell-shaped blue or purple flowers.
- california fan palm — a tall fan palm, Washingtonia filifera, of California, having a shaggy skirt of withered leaves near the top of the trunk.
- california job case — a job case having sufficient spaces to contain both uppercase and lowercase letters and 37 additional characters of foundry type. Compare case2 (def 8).
- california live oak — an evergreen oak, Quercus agrifolia, of the western coast of the U.S., having leathery leaves and a short, stout trunk.
- california sea lion — any of several large eared seals, as Eumetopias jubatus (Steller's sea lion) of the northern Pacific, and Zalophus californicus (California sea lion) of the Pacific coast of North America.
- campernelle jonquil — a narcissus, Narcissus odorus, of the amaryllis family, having clusters of two to four fragrant yellow flowers.
- cannot help oneself — to be the victim of circumstances, a habit, etc.
- cannot very well do — If you say that you cannot very well do something, you mean that it would not be right or possible to do it.
- capacitive coupling — the connection of two or more circuits by means of a capacitor.
- cape york peninsula — large peninsula in NE Australia, part of Queensland, between the Gulf of Carpentaria & the Coral Sea
- carbon steel piping — Carbon steel piping is pipes made of steel with carbon as the main alloying component, used for transporting fluids.
- caroline of ansbach — 1683–1737, wife of George II of Great Britain
- cartilaginification — The formation of cartilage.
- cash-flow statement — a financial statement that shows a company's cash disbursements and receipts over a given period
- cask of amontillado — a short story (1846) by Edgar Allan Poe.
- cast one's lot with — one of a set of objects, as straws or pebbles, drawn or thrown from a container to decide a question or choice by chance.
- castelnuovo-tedesco — Mario [mah-ryaw] /ˈmɑ ryɔ/ (Show IPA), 1895–1968, U.S. composer, born in Italy.
- catalytic converter — A catalytic converter is a device which is fitted to a car's exhaust to reduce the pollution coming from it.
- catalytic reforming — Catalytic reforming is a process that converts petroleum refinery naphthas to high-octane blending components.
- cathodoluminescence — luminescence caused by irradiation with electrons (cathode rays)
- celestial longitude — the angular distance measured eastwards from the vernal equinox to the intersection of the ecliptic with the great circle passing through a celestial body and the poles of the ecliptic
- central reservation — The central reservation is the strip of ground, often covered with grass, that separates the two sides of a major road.
- cerebellar syndrome — a disease of the cerebellum characterized by unsteady movements and mispronunciation of words
- cerebrospinal fluid — the clear colourless fluid in the spaces inside and around the spinal cord and brain
- champagne socialist — a professed socialist who enjoys an extravagant lifestyle
- champion of england — a hereditary official at British coronations, representing the king (King's Champion) or the queen (Queen's Champion) who is being crowned, and having originally the function of challenging to mortal combat any person disputing the right of the new sovereign to rule.
- chemical castration — the use of drugs to reduce libido
- chemical processing — Chemical processing is a way of making changes to chemical compounds.
- chinese tallow tree — tallow tree.
- chlorofluorocarbons — Plural form of chlorofluorocarbon.
- chlorofluoromethane — any of a series of gaseous or volatile methanes substituted with chlorine and fluorine and containing little or no hydrogen: used as refrigerants and, formerly, as aerosol propellants until scientists became concerned about depletion of the atmospheric ozone layer.
- chloroplatinic acid — a red-brown, crystalline, water-soluble solid, H 2 PtCl 6 ⋅6H 2 O, used chiefly in platinizing glass, metals, and ceramic ware.
- chlorosulfonic acid — a colorless or yellowish, highly corrosive, pungent liquid, HClO 3 S, usually produced by treating sulfur trioxide with hydrogen chloride: used in organic synthesis to introduce the sulfonyl chloride group, =SO 2 Cl.
- christian socialist — a member of any of certain European political parties advocating a form of social organization based on Christian and socialistic principles.