ultrabook

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noun

A very lightweight and thin portable computer the areal size of a notebook computer or subnotebook.

Scrabble 15
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Meanings

nounultrabook (plural ultrabooks)

plural ultrabooks

  1. computingA very lightweight and thin portable computer the areal size of a notebook computer or subnotebook.

Origin

From ultra- + book; see notebook computer.

Full word history & related roots →
Cite this entry
APA

ultrabook. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/ultrabook

MLA

“ultrabook.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ultrabook. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “ultrabook,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/ultrabook.

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