erlang

noun

1. A dimensionless statistical measure of the volume of telecommunications traffic relative to the capacity of a single channel.

   “One erlang (1 Erl) is defined as the amount of traffic generated by the user when he or she uses one traffic channel for one hour (this one hour is usually the busy hour of the network).”

name

1. A functional programming language designed for highly concurrent and fault-tolerant applications.

   “If you need to wring out every drop of performance on a complex task, or want to avoid rewriting a library written in a language other than Erlang, you'll want to explore Erlang's tools for connecting with other programming languages.”