IRC

n.（名詞）
An international computer network of Internet servers, using its own protocol through which individual users can hold real-time online conversations.
實(shí)時(shí)在線對(duì)話：國(guó)際計(jì)算機(jī)網(wǎng)絡(luò)的網(wǎng)絡(luò)服務(wù)，使用自己的通訊協(xié)議使個(gè)人使用者可以實(shí)時(shí)在線對(duì)話

來(lái)源：
I(nternet) R(elay) C(hat)
I(nternet) R(elay) C(hat)