mainspring
21mainspring — meɪnsprɪŋ n. main spring in a mechanism; chief impelling force …
22mainspring — noun 1》 the principal spring in a watch, clock, etc. 2》 the main agent of motivation …
23mainspring — n 1. principal spring, wheelwork, inner spring, essential part. 2. chief motive, impelling cause, impulse, prime motivation; source, origin, wellspring, fountainhead; ground, basis, key, keystone, root; prime mover, chief agent, most essential… …
24mainspring — main•spring [[t]ˈmeɪnˌsprɪŋ[/t]] n. 1) hor the principal spring in a mechanism, as a watch 2) the chief power; the impelling cause • Etymology: 1585–95 …
25mainspring — /ˈmeɪnsprɪŋ/ (say maynspring) noun 1. the principal spring in a mechanism, as in a watch. 2. the chief motive power; the impelling cause …
26mainspring — n. 1 the principal spring of a mechanical watch, clock, etc. 2 a chief motive power; an incentive …
27The Mainspring of Human Progress — by Henry Grady Weaver is a libertarian history book published in 1947 by Talbot Books. In 1953, the Foundation for Economic Education printed a revised edition and has done all subsequent printings. The book borrows heavily from the 1943 Rose… …
28Automatic watch — An automatic or self winding watch is a mechanical watch, whose mainspring is wound automatically by the natural motion of the wearer s arm, to make it unnecessary to manually wind the watch. Most mechanical watches sold today are self winding.… …
29Mechanical watch — The movement of a Russian watch A mechanical watch is a watch that uses a mechanical mechanism to measure the passage of time, as opposed to modern quartz watches which function electronically. It is driven by a spring (called a mainspring) which …
30Fusee (horology) — Used in older spring powered mechanical watches and clocks, a fusee is a cone shaped pulley with a spiral groove around it, wound with a cord or chain which is attached to the mainspring barrel. Fusees were used from the 1400s to the early 1900s… …
