English

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Etymology

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ortho- +‎ stasis

Noun

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orthostasis (uncountable)

  1. (sciences) The act or status of standing upright.
    Synonym: orthostatism (uncommon)
    lightheadedness during orthostasis
  2. (sciences, especially medicine, informal) Ellipsis of orthostatic hypotension.
    A history of orthostasis prompts some caution in prescribing of antihypertensives.
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