21-letter words containing h, o, b, l, e
- 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
- salam-weinberg theory — the electroweak theory.
- single spanish burton — a tackle having a runner as well as the fall supporting the load, giving a mechanical advantage of three, neglecting friction.
- sodium metabisulphite — an inorganic compound with the chemical formula Na2S2O5 that is used as a preservative, antioxidant and disinfectant
- space shuttle orbiter — orbiter (def 1).
- spicebush swallowtail — a swallowtail butterfly, Papilio troilus, having a dark body with yellow spots on the forewings and greenish hind wings.
- steer clear of sb/sth — If you steer clear of someone or something, you deliberately avoid them.
- take sb/sth seriously — If you take someone or something seriously, you believe that they are important and deserve attention.
- the barber of seville — Italian Il barbiere di Siviglia. a comic opera (1816) by Gioacchino Rossini based on a comedy (1775) by Beaumarchais.
- 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 built environment — the buildings and all other things constructed by human beings
- the lower vertebrates — relatively simple and primitive vertebrates
- the rock of gibraltar — a limestone promontory at the tip of S Spain
- the yellow brick road — the road to success or happiness (in the film the Wizard of Oz the yellow brick road leads to Oz)
- throw sb a curve ball — If someone throws you a curve or throws you a curve ball, they surprise you by doing something that you do not expect.
- to be a hospital case — if you say that someone or something is a hospital case, you mean that they need urgent help because they are doing very badly
- to be hard luck on sb — to be unfortunate or unlucky for someone
- to be killed outright — If someone is killed outright, they die immediately, for example in an accident.
- to blow sth wide open — to expose something
- to lay something bare — If you lay something bare, you uncover it completely so that it can then be seen.
- to rub shoulders with — If you rub shoulders with famous people, you meet them and talk to them. You can also say that you rub elbows with someone, especially in American English.
- up to the elbows with — busily occupied with; deeply immersed in
- vacation bible school — a religious school conducted by some churches during the summer for students on vacation.
- weinberg-salam theory — electroweak theory.
- with sb's compliments — If you say that you are giving someone something with your compliments, you are saying in a polite and fairly formal way that you are giving it to them, especially as a gift or a favour.