trademark an instant messaging computer program that enables internet users to locate and communicate with one another online
Word Origin
approximate abbreviation of I seek you
icq in Technology
chat 1. Abbreviation for "I seek you". 2. A proprietary chat system created by a couple of israeli guys, who later founded "mirabilis". ICQ was sold to America On-Line around 1998. The name "ICQ" is a play on "cq", the radio signal for seeking conversation. (https://icq.com/). [Confirm derivation? TCP? Summary?] (2000-04-03)