Ingazi z'icyuma ni ingazi yubatswe hifashishijwe ibice by'ibyuma nk'ibiti by'ibyuma, inkingi, n'intambwe. Ingazi zicyuma zizwiho kuramba, imbaraga, hamwe nubwiza bwa kijyambere. Bakunze gukoreshwa mubikorwa byinganda, ubucuruzi, nuburaro, bitanga igisubizo gikomeye kandi kirambye cyo kwinjira murugo no hanze. Ingazi zicyuma zirashobora guhindurwa kugirango zihuze ibishushanyo mbonera nibisabwa mu bwubatsi, kandi birashobora kurangizwa nubuvuzi butandukanye nko gutwika ifu cyangwa galvanisiyasi kugirango byongere imbaraga zo kurwanya ruswa. Igishushanyo nogushiraho ingazi zicyuma bigomba kubahiriza amategeko yimyubakire hamwe nubuziranenge bwumutekano kugirango uburinganire bwimiterere numutekano wabakoresha.