21-letter words containing b, e, t, r, o, n

portable common loops — (PCL) A language which started out as an implementation of CommonLoops and turned into a portable CLOS implementation. Version 1992-08-28. It runs under Lucid Common LISP 4.0.1 and CMU Common LISP 16e.
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.
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-key encryption — (cryptography) (PKE, Or "public-key cryptography") An encryption scheme, introduced by Diffie and Hellman in 1976, where each person gets a pair of keys, called the public key and the private key. Each person's public key is published while the private key is kept secret. Messages are encrypted using the intended recipient's public key and can only be decrypted using his private key. This is often used in conjunction with a digital signature. The need for sender and receiver to share secret information (keys) via some secure channel is eliminated: all communications involve only public keys, and no private key is ever transmitted or shared. Public-key encryption can be used for authentication, confidentiality, integrity and non-repudiation. See also knapsack problem.
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.
rectangular hyperbola — a hyperbola with perpendicular asymptotes
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
reverberatory furnace — See at reverberatory (def 2).
salam-weinberg theory — the electroweak theory.
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.
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
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 break of day/dawn — The break of day or the break of dawn is the time when it begins to grow light after the night.
the built environment — the buildings and all other things constructed by human beings
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
the sooner the better — You say the sooner the better when you think something should be done as soon as possible.
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 hard luck on sb — to be unfortunate or unlucky for someone
to be in dire straits — to be in a position of acute difficulty
to bend someone's ear — If you say that someone is bending your ear about something, you mean that they keep talking to you about it because they think it is important; used especially when you are irritated by this.
to box someone's ears — If someone boxes a child's ears, they hit them on the side of their head as a punishment.
to have money to burn — If you say that someone has money to burn, you mean that they have more money than they need or that they spend their money on things that you think are unnecessary.
to lay something bare — If you lay something bare, you uncover it completely so that it can then be seen.
to put one over on sb — If someone puts one over on you, they make you do or believe something by telling you things that are not true.
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.
to think better of it — If you intend to do something and then think better of it, you decide not to do it because you realize it would not be sensible.
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
venus's flower basket — a glass sponge of the genus Euplectella, inhabiting deep waters off the Philippines and Japan, having a cylindrical skeleton formed of an intricate latticework of siliceous spicules.
weinberg-salam theory — electroweak theory.
with one's bare hands — If someone does something with their bare hands, they do it without using any weapons or tools.

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