21-letter words containing e, r, g, i, o
- intravenous drug user — a drug addict who injects drugs (esp heroin) intravenously
- keep the ball rolling — a spherical or approximately spherical body or shape; sphere: He rolled the piece of paper into a ball.
- knowledge engineering — the practical application of developments in the field of computer science concerned with artificial intelligence.
- language-based editor — language-sensitive editor
- large hadron collider — a particle accelerator at the European Laboratory for Particle Physics near Geneva, containing a circular underground tunnel 27km (16.8 miles) in circumference, around which two streams of hadrons are sent in opposite directions before being brought together in a high-energy collision
- lateral magnification — the ratio of the height of the image to the height of the object in a lens or other optical system.
- leaning tower of pisa — a round, marble campanile in Pisa, Italy, begun in 1174 and now 17 feet (5.2 meters) out of the perpendicular in its height of 179 feet (54 meters).
- legionnaire's disease — a serious, sometimes fatal, infection, caused by the bacterium Legionella pneumophila, which has symptoms similar to those of pneumonia: believed to be spread by inhalation of contaminated water vapour from showers and air-conditioning plants
- legionnaires' disease — a type of acute pneumonia caused by Legionella pneumophila bacterium and characterized by fever, chest pain, cough, and muscle aches.
- light armored vehicle — an eight-wheeled armored reconnaissance car with a 25mm cannon, in service with the U.S. Army and Marine Corps in the 1980s.
- like a shag on a rock — abandoned and alone
- linear graph notation — (LGN) A linearised representation of TCOL trees.
- long-term liabilities — Long-term liabilities are debts that a company does not have to pay back for a year or more.
- magneto-optical drive — magneto-optical disk
- magnetocaloric effect — an increase or decrease of the temperature of a thermally isolated magnetic substance accompanying an increase or decrease in the intensity of a magnetic field.
- majority shareholding — a holding of more than half a company's shares
- make one's gorge rise — a narrow cleft with steep, rocky walls, especially one through which a stream runs.
- manufacturing process — chain of production
- mariage de convenance — marriage entered into for a personal or family advantage, as for social, political, or economic reasons, usually without love and sometimes without the expectation of sexual relations.
- mayor of casterbridge — a novel (1886) by Thomas Hardy.
- member of the wedding — a novel (1946) and play (1950) by Carson McCullers.
- meter-kilogram-second — of or relating to the system of units in which the meter, kilogram, and second are the principal units of length, mass, and time. Abbreviation: mks, MKS.
- miniature photography — photography with a camera using film that is 35 millimeters wide or less.
- multi-ringed compound — A multi-ringed compound is a compound which has 70 or more carbon atoms, often a residual compound.
- necrotising fasciitis — a disease caused by the bacterium streptococcus pyogenes, in which the fasciae of the muscles or other organs become inflamed, resulting in rapid destruction of overlying tissues
- negative amortization — the increase of the principal of a loan by the amount by which periodic loan payments fall short of the interest due, usually as a result of an increase in the interest rate after the loan has begun.
- negative prescription — the barring of adverse claims to property, etc, after a specified period of time has elapsed, allowing the possessor to acquire title
- negotiable instrument — order or promise to pay money
- negotiable securities — securities that are legally transferable in title from one party to another
- network filing system — (spelling) Misnomer for Network File System.
- night storage heating — a system of heating which uses a heater or radiator that stores heat at night-time because electricity is cheaper
- night-blooming cereus — any of various cacti of the genera Hylocereus, Peniocereus, Nyctocereus, or Selenicereus, having large, usually white flowers that open at night.
- no/nothing other than — You use nothing other than and no other than when you are going to mention a course of action, decision, or description and emphasize that it is the only one possible in the situation.
- non-repeating decimal — a decimal representation of any irrational number, having the property that no sequence of digits is repeated ad infinitum.
- north east new guinea — the NE part of the former Australian Territory of New Guinea; now part of Papua New Guinea.
- one foot in the grave — near to death
- one thing and another — You can use the expression 'one thing and another' to suggest that there are several reasons for something or several items on a list, but you are not going to explain or mention them all.
- 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.
- open trading protocol — Internet Open Trading Protocol
- opposite-sex marriage — (broadly) any of the diverse forms of interpersonal union established in various parts of the world to form a familial bond that is recognized legally, religiously, or socially, granting the participating partners mutual conjugal rights and responsibilities and including, for example, opposite-sex marriage, same-sex marriage, plural marriage, and arranged marriage: Anthropologists say that some type of marriage has been found in every known human society since ancient times. See Word Story at the current entry.
- 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).
- over and over (again) — repeatedly; time after time
- overhead-valve engine — I-head engine.
- packed encoding rules — (protocol, standard) (PER) ASN.1 encoding rules for producing a compact transfer syntax for data structures described in ASN.1, defined in 1994. PER provides a much more compact encoding then BER. It tries to represents the data units using the minimum number of bits. The compactness requires that the decoder knows the complete abstract syntax of the data structure to be decoded, however. Documents: ITU-T X.691, ISO 8825-2.
- path coverage testing — (testing) Testing a program by examining which lines of executable code are visited (as in code coverage testing) and also the ways of getting to each line of code and the subsequent sequence of execution. Path coverage testing is the most comprehensive type of testing that a test suite can provide. It can find more bugs, especially those that are caused by data coupling. However, path coverage is hard and usually only used for small and/or critical sections of code.
- performance-enhancing — noting or relating to a drug or other substance used to improve one's performance in a sport or other activity requiring strength, stamina, etc.: The use of performance-enhancing steroids by athletes is banned.
- ploughman's spikenard — a European plant, Inula conyza, with tubular yellowish flower heads surrounded by purple bracts: family Asteraceae (composites)
- polarizing microscope — a microscope that utilizes polarized light to reveal detail in an object, used especially to study crystalline and fibrous structures.
- polygenic inheritance — the heredity of complex characters that are determined by a large number of genes, each one usually having a relatively small effect.
- portrait photographer — a photographer who specializes in portraits