orthostasis

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noun

The act or status of standing upright.

“lightheadedness during orthostasis”

Similar
orthostatism
OriginEnglish stasis ← Ancient Greek ὀρθός (orthós) ← Proto-Hellenic *ortʰwós →
Scrabble 14
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Meanings

nounorthostasis (uncountable)
  1. uncountablesciencesThe act or status of standing upright.

    lightheadedness during orthostasis

    Synonyms: orthostatism

  2. abbreviationellipsisespeciallyinformaluncountablemedicineEllipsis of orthostatic hypotension.

    A history of orthostasis prompts some caution in prescribing of antihypertensives.

Synonyms & antonyms

nounThe act or status of standing upright.

Similar
orthostatism
Also see
orthostatic hypotensionorthostatism

Origin

  1. Proto-Indo-European*h₃er-
  2. Proto-Indo-European*dʰeh₁-
  3. Proto-Indo-European*h₃érdʰeti?
  4. Proto-Indo-European*h₃erdʰ-
  5. Proto-Hellenic*ortʰwós
  6. Ancient Greekὀρθός (orthós)
  7. Englishortho-
  8. Englishstasis
  9. Englishorthostasis

From ortho- + stasis.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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