packet loss

This term is a technical compound noun used primarily in networking and telecommunications. It describes a specific type of network degradation where data units fail to arrive, leading to perceived glitches such as audio gaps in VoIP calls or "rubber-banding" in online gaming.

Because it refers to a phenomenon or a measurable state of a network connection, it is treated as an uncountable noun. You would refer to "significant packet loss" or "a high rate of packet loss" rather than "packet losses."