pseudodomain.
A nonexistent top-level domain that is assigned a meaning in certain specialized contexts.
Meaning & usage
A nonexistent top-level domain that is assigned a meaning in certain specialized contexts.
The anonymity network Tor has a top-level pseudodomain .onion for hidden services, which can only be reached with a Tor client.
Where this word comes from
From pseudo- + domain.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.