hypotension orthostatiquecommon nounSyllable Decompositionhypotension orthostatiqueEtymologyexpandsee hypotension and orthostatic.Definition1. Drop in blood pressure of 10 to 20 mm of mercury when moving to a standing position, resulting in a feeling of discomfort after a sudden rise or prolonged bed rest.physiologiemédecineexpandHyperonymhypotensionTranslationsenglish:orthostatic hypotension