Ma'anar ƙamus na "lambar atomic 92" shine adadin protons a cikin tsakiya na atom na wani sinadari mai lamba 92. Abu na 92 shi ne uranium, ƙarfe na rediyo wanda aka fi amfani dashi a cikin makamashin nukiliya da makaman nukiliya. . Lambar atomic ta, 92, tana nuna cewa atom ɗin tsaka tsaki na uranium ya ƙunshi protons 92 a cikin tsakiya. Lambar atomic wani abu ne na asali kuma yana ƙayyade matsayinsa a cikin tebur na lokaci-lokaci.