21-letter words containing n, o, r, t, h, b
- 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
- salam-weinberg theory — the electroweak theory.
- satisficing behaviour — the form of behaviour demonstrated by firms who seek satisfactory profits and satisfactory growth rather than maximum profits
- 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.
- sympathetic vibration — a vibration induced by resonance.
- 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 hard luck on sb — to be unfortunate or unlucky for someone
- 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 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.
- 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.
- with one's bare hands — If someone does something with their bare hands, they do it without using any weapons or tools.