hy·​per·​emia ˌhī-pər-ˈē-mē-ə How to pronounce hyperemia (audio)
: excess of blood in a body part : congestion
hyperemic adjective

Example Sentences

Recent Examples on the Web The noninvasive procedure, called reactive hyperemia peripheral arterial tonometry, measures blood flow to the fingers during blood pressure inflation and release. Mayo Clinic News Network, chicagotribune.com, 1 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hyperemia.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History


New Latin

First Known Use

circa 1839, in the meaning defined above

Time Traveler
The first known use of hyperemia was circa 1839

Dictionary Entries Near hyperemia

Cite this Entry

“Hyperemia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperemia. Accessed 30 Jan. 2023.

Medical Definition


variants or chiefly British hyperaemia
: excess of blood in a body part (as from an increased flow of blood due to vasodilation) : congestion
hyperemic adjective
or chiefly British hyperaemic
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