'''TximistaFIAUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUTximista''' [[argindar]] deskarga [[Lurraren atmosfera|atmosferikoa]] da, oro har [[ekaitz]] aldian izaten dena, batzuetan baita ere [[sumendi]] erupzio eta hondar-ekaitzetan. Tximistak 60.000 [[metro|m]]/[[segundo|s]] abiadura har dezake eta 30.000 [[Celsius gradu|°C]] tenperatura izatera irits daiteke, hain beroa ezen lurra eta hondarra galda ditzakeela [[fulgurita]] bihurtzeraino. Urtean 16 milioi [[trumoi-ekaitz]] izaten dira eta egunean 8 bat milioi tximistek lurra jotzen.
[[Trumoi]]a da tximista baten alderdi akustikoa. [[Hodei]]en artean, edo hodeien eta lurraren artean, gertatzen diren deskarga elektrikoen ondorioa da tximista. Tximistek forma asko izan ditzakete: sigi-sagakoa, adarkatua, arrosario erakoa, etab.