Английский разговорный словарь (основной) - fulcrum
Fulcrum
fulcrum
ˈfʌlkrəm n. (pl. fulcra or fulcrums) 1 thepointagainstwhich a lever is placed to get a purchase or on which it turns or is supported. 2 the means by which influence etc. is brought to bear. [L, = post of a couch, f. fulcire to prop]