21-letter words containing n, a, b, o, i

nellis air force base — the largest air base in the U.S. Air Force's Tactical Air Command, located near Las Vegas, Nev., and developed from what began in 1941 as a U.S. Army Air Corps field.
nine-banded armadillo — an armadillo, Dasypus novemcinctus, of the southern U.S. to Argentina, having nine hinged bands of bony plates, the female of which usually gives birth to quadruplets that are always of the same sex.
northumberland strait — the part of the Gulf of St. Lawrence that separates Prince Edward Island from New Brunswick and Nova Scotia, in SE Canada. About 200 miles (320 km) long; 9–30 miles (15–48 km) wide.
oblique circular cone — a cone whose surface is generated by lines joining a fixed point to the points of a circle, the fixed point lying on a line that is not perpendicular to the circle at its center.
observation satellite — an unmanned satellite that observes the earth and gathers data
on o's best behaviour — If someone is on their best behaviour, they are trying very hard to behave well.
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.
pick someone's brains — to obtain information or ideas from someone
poor robin's plantain — the rattlesnake weed, Hieracium venosum.
potassium bicarbonate — a white, crystalline, slightly alkaline, salty-tasting, water-soluble powder, KHCO 3 , produced by the passage of carbon dioxide through an aqueous potassium carbonate solution: used in cookery as a leavening agent and in medicine as an antacid.
premium savings bonds — (in Britain) bonds issued by the Treasury since 1956 for purchase by the public. No interest is paid but there is a monthly draw for cash prizes of various sums
printed circuit board — a circuit in which the interconnecting conductors and some of the circuit components have been printed, etched, etc., onto a sheet or board of dielectric material (PC board, printed-circuit board)
propantheline bromide — a substance, C 2 3 H 3 0 BrNO 3 , used in the treatment of peptic ulcers.
public administration — the implementation of public policy, largely by the executive branch.
public transportation — means of fare-paying travel
push the panic button — an alarm button for use in an emergency, as to summon help.
rayleigh distribution — (mathematics) A curve that yields a good approximation to the actual labour curves on software projects.
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.
recompression chamber — hyperbaric chamber.
rehabilitation centre — a centre or clinic where people with an alcohol or drug addiction are treated
reverberation chamber — a room with walls that reflect sound. It is used to make acoustic measurements and as a source of reverberant sound to be mixed with direct sound for recording or broadcasting
salam-weinberg theory — the electroweak theory.
sampling distribution — the distribution of a statistic based on all possible random samples that can be drawn from a given population.
san gabriel mountains — a mountain range in S California, N of Los Angeles. Highest peak, San Antonio Peak, 10,080 feet (3072 meters).
saponification number — the number of milligrams of potassium hydroxide required to saponify one gram of a given ester, especially a glyceride.
satisficing behaviour — the form of behaviour demonstrated by firms who seek satisfactory profits and satisfactory growth rather than maximum profits
serbia and montenegro — a former country in SE Europe, consisting of the republics of Serbia and Montenegro; replaced the Federal Republic of Yugoslavia in 2003, and dissolved in 2006 following Montenegro’s decision to secede
single spanish burton — a tackle having a runner as well as the fall supporting the load, giving a mechanical advantage of three, neglecting friction.
snr bandwidth product — (communications) The integral of the SNR over frequency. The SNR bandwidth product is an important limit in the capacity of a communication channel.
stabilization-process — the act or process of stabilizing or the state of being stabilized.
subliminal perception — perception of or reaction to a stimulus that occurs without awareness or consciousness
subsistence allowance — money given in advance to a new soldier, employee, etc., to buy food, clothing, and pay for other necessities while awaiting a first pay.
substitution instance — an expression so derived from another
substitution reaction — the replacement of an atom or group of atoms in a compound by another atom or group.
sympathetic vibration — a vibration induced by resonance.
tetrabromofluorescein — eosin (def 1).
the battle of britain — from August to October 1940, the prolonged bombing of S England by the German Luftwaffe and the successful resistance by the RAF Fighter Command, which put an end to the German plan of invading Britain
the birth of a nation — an American film (1915), directed by D. W. Griffith.
the probation service — a criminal justice service that is mainly responsible for dealing with offenders by placing them under the supervision of a probation officer
threatening behaviour — intimidation or intentional behaviour that causes another person to fear injury or harm
to be arrayed against — to be opposed to
to be in dire straits — to be in a position of acute difficulty
to hit the bookstands — (of a book) to be published
to kill a mockingbird — a novel (1960) by Harper Lee.
to lay something bare — If you lay something bare, you uncover it completely so that it can then be seen.
to risk life and limb — If someone risks life and limb, they do something very dangerous that may cause them to die or be seriously injured.
uniform business rate — a local tax in the UK paid by businesses, based on a local valuation of their premises and a rate fixed by central government that applies throughout the country
vacation bible school — a religious school conducted by some churches during the summer for students on vacation.
washington's birthday — February 22, formerly observed as a legal holiday in most states of the U.S. in honor of the birth of George Washington.
weinberg-salam theory — electroweak theory.

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