21-letter words containing c, l, e, n, h
- metopon hydrochloride — a narcotic drug, C18H21O3N·HCl, derived from morphine, but slightly more potent: used in medicine to relieve pain
- monochloroacetic acid — chloroacetic acid.
- motivational research — the application of the knowledge and techniques of the social sciences, especially psychology and sociology, to understanding consumer attitudes and behavior: used as a guide in advertising and marketing.
- multichannel analyser — an electronic instrument, such as a pulse height analyser, that splits an input waveform into a large number of channels in accordance with a particular parameter of the input
- night-blooming cereus — any of various cacti of the genera Hylocereus, Peniocereus, Nyctocereus, or Selenicereus, having large, usually white flowers that open at night.
- north atlantic treaty — the treaty (1949) signed by 12 countries, providing for the establishment of NATO.
- old spanish practices — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
- open graphics library — (graphics, library) (OpenGL) A multi-platform software interface to graphics hardware, supporting rendering and imaging operations. The OpenGL interface was developed by Silicon Graphics, who license it to other vendors. The OpenGL graphics interface consists of several hundred functions operating on 2D and 3D objects, supporting basic techniques, such as modelling and smooth shading, and advanced techniques, such as texture mapping and motion blur. Many operations require a frame buffer. OpenGL is network-transparent, and a common extension to the X Window System allows an OpenGL client to communicate across a network with a different vendor's OpenGL server. OpenGL is based on Silicon Graphics' proprietary IRIS GL.
- ortho-dichlorobenzene — a colorless liquid with a pleasant odor, C 6 H 4 Cl 2 , used as a solvent for a wide range of organic materials.
- orthogonal projection — a two-dimensional graphic representation of an object in which the projecting lines are at right angles to the plane of the projection. Also called orthogonal projection. Compare isometric (def 5).
- orthogonal trajectory — the locus of a point whose path cuts each curve of a family of curves at right angles.
- phenarsazine chloride — adamsite.
- photoelectric current — photocurrent.
- physically challenged — See example at challenged (def 1).
- pipelined burst cache — Pipeline Burst Cache
- pneumoencephalography — encephalography.
- polygenic inheritance — the heredity of complex characters that are determined by a large number of genes, each one usually having a relatively small effect.
- privacy enhanced mail —
- psychoneuroimmunology — the study of the effects of psychological factors on the immune system
- purple-fringed orchid — either of two orchids, Habenaria fimbriata or H. psycodes, of eastern North America, having a cluster of fragrant purple flowers with a fringed lip.
- purple-fringed orchis — either of two North American orchids (Habenaria psycodes and H. fimbriata) with purple-fringed flowers
- put sb in their place — If you put someone in their place, you show them that they are less important or clever than they think they are.
- rap over the knuckles — to reprimand
- reciprocal inhibition — the theory that the pairing of an anxiety-provoking stimulus with anxiety-reducing reactions will weaken the association between the stimulus and the anxiety.
- reconnaissance flight — a flight made by an aircraft in order to obtain military information about a particular place
- rectangular hyperbola — a hyperbola with perpendicular asymptotes
- rehabilitation centre — a centre or clinic where people with an alcohol or drug addiction are treated
- replacement algorithm — The method used to determine which entry in an associative cache to flush to main memory when it is desired to cache a new block of data. The "least recently used" algorithm flushed the block which has not been accessed for the longest time. A random replacement algorithm picks any block with equal probability.
- return the compliment — repay sb's kindness with a kind act
- richard coeur de lion — ("Richard the Lion-Hearted"; "Richard Coeur de Lion") 1157–99, king of England 1189–99.
- roll with the punches — a thrusting blow, especially with the fist.
- schlieren photography — a type of photography which records schlieren
- school superintendent — an official whose job is to oversee school administration within a district
- schoolgirl complexion — a smooth, clear complexion, such as schoolgirls are considered to have
- self-characterization — portrayal; description: the actor's characterization of a politician.
- silicon tetrachloride — a colorless, fuming liquid, SiCl 4 , used chiefly for making smoke screens and various derivatives of silicon.
- slatwall merchandiser — A slatwall merchandiser is a three-dimensional display unit with grooves cut into its surface into which metal hanging rails can be fixed at various heights.
- spherical coordinates — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
- splice the main brace — to join together or unite (two ropes or parts of a rope) by the interweaving of strands.
- statistical mechanics — the science that deals with average properties of the molecules, atoms, or elementary particles in random motion in a system of many such particles and relates these properties to the thermodynamic and other macroscopic properties of the system.
- sunday school teacher — someone who teaches at a Sunday school
- tartarian honeysuckle — an Asian honeysuckle, Lonicera tatarica, having fragrant, white to pink flowers.
- the central provinces — the Canadian provinces of Ontario and Quebec
- the early renaissance — the period from about 1400 to 1500 in European, esp Italian, painting, sculpture, and architecture, when naturalistic styles and humanist theories were evolved from the study of classical sources, notably by Donatello, Masaccio, and Alberti
- thermal decomposition — Thermal decomposition is the process in which a chemical species breaks down when its temperature is increased.
- to be hard luck on sb — to be unfortunate or unlucky for someone
- to fly in the face of — If an action or belief flies in the face of accepted ideas or rules, it seems to completely oppose or contradict them.
- trichloronitromethane — chloropicrin.
- twelve-tone technique — a modern system of tone relationships in which the 12 tones of an octave are not centered around any one tone, but are unified by a selected order of tones for a given composition.
- undesirable discharge — a discharge under other than honorable conditions of a person from military service by administrative action.