noun, slang ·Uncommon ·College level

Definitions

Noun

1. 1
   The act or status of standing upright. uncountable

   "lightheadedness during orthostasis"

2. 2
   Ellipsis of orthostatic hypotension. abbreviation, alt-of, ellipsis, especially, informal, uncountable

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

Synonyms

All synonyms

orthostatic hypotensionorthostatism

Example

More examples

"lightheadedness during orthostasis"

Etymology

ortho- + stasis

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.