Merriam-Webster Collegiate Dictionary - keystone
Связанные словари
Keystone
keystone
noun Date: circa 1637 1. the wedge-shaped piece at the crown of an arch that locks the other pieces in place — see arch illustration 2. something on which associated things depend for support determination, a ~ of the puritan ethic — L. S. Lewis 3. a species of plant or animal that produces a major impact (as by predation) on its ecosystem and is considered essential to maintaining optimum ecosystem function or structure
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См. в других словарях
1.
n. 1 the central principle of a system, policy, etc., on which all the rest depends. 2 a central stone at the summit of an arch locking the whole together. ...Толковый словарь английского языка Oxford English Reference
Большой Англо-русский Русско-английский политехнический словарь
Англо-русский строительный словарь
Англо-русский Русско-английски словарь по телекоммуникациям
Англо-русский Русско-английский научно-технический словарь
6.
1. архит. замковый камень (свода или арки) 2. краеугольный камень, основа the keystone of democracy —- краеугольный камень демократии novelty is the keystone of success —- новизна - залог успеха ...Новый большой англо-русский словарь
7.
noun 1) archit. замковый камень (свода или арки) 2) краеугольный камень, основной принцип ...Англо-русский словарь
8.
(keystones) A keystone of a policy, system, or process is an important part of it, which is the basis for later developments. Keeping inflation low is the keystone of their economic policy. N-COUNT: usu sing, oft N of/in n ...Collins COBUILD Advanced Learner's English Dictionary
9.
~ n C usually singular 1 the large central stone in an arch1 (1) that keeps the other stones in position 2 the most important part of an idea, belief etc + of (Social justice is the keystone of our policies.) ...Longman Dictionary of Contemporary English
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