411 REFERENCE · Wiktionary
.arpa
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
arpa ARPA árpa arpã
Translingual
Etymology
Originally an acronym for Advanced Research Projects Agency; now said to stand for Address and Routing Parameter Area.
Noun
mul noun
mul Internet An Internet top-level domain used exclusively for technical infrastructure purposes.