21-letter words containing a, m, b, i, n
- pure imaginary number — a complex number of the form iy where y is a real number and i = .
- recompression chamber — hyperbaric chamber.
- 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.
- 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
- splice the main brace — to join together or unite (two ropes or parts of a rope) by the interweaving of strands.
- subliminal perception — perception of or reaction to a stimulus that occurs without awareness or consciousness
- submerged arc welding — a type of heavy electric-arc welding using mechanically fed bare wire with the arc submerged in powdered flux to keep out oxygen
- supplementary benefit — (formerly) an extra amount of money that is paid to someone by the government, in addition to their normal income. Replaced by income support in 1988
- sympathetic vibration — a vibration induced by resonance.
- tetrabromofluorescein — eosin (def 1).
- 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.
- tubercular meningitis — an infection of the membranes of the central nervous system caused by the bacterium Mycobacterium tuberculosis; features can include fever, headache, and coma
- 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
- weinberg-salam theory — electroweak theory.