superdomain

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noun

A taxonomic grouping above domain.

Scrabble 16
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Meanings

nounsuperdomain (plural superdomains)

plural superdomains

  1. biologyA taxonomic grouping above domain.
  2. biochemistryTwo or more conserved domains of nominally unrelated origin that appear in the same order in diverse proteins and are inherited as a single structural/functional unit.
  3. InternetrareThe domain to which a subdomain belongs.

    Flash disallowed access only between two completely different superdomains, but allowed access between two different subdomains and/or protocols[…]

    2004, Robert Reinhardt, Joey Lott, Flash MX 2004 ActionScript Bible, page 537
    1 more example

    Notes provides your Internet domain name (as it appears in the computer's TCP/IP setup and minus the superdomain (org, net, and so on) component) as a default.

    2000, Rob Kirkland, Domino System Administration, page 76

Origin

From super- + domain.

Full word history & related roots →
Cite this entry
APA

superdomain. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/superdomain

MLA

“superdomain.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/superdomain. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “superdomain,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/superdomain.

Source: superdomain on Wiktionary, CC BY-SA 4.0.