sinoatrial

adjective

si·​no·​atri·​al ˌsī-nō-ˈā-trē-əl How to pronounce sinoatrial (audio)
: of, involving, or being the sinus node
sinoatrial block

Examples of sinoatrial in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
These cells, known as your sinoatrial (SA) node, tell your heart when and how to beat in order to send oxygen-rich blood throughout your body. Rachel Nall, Msn, SELF, 18 Aug. 2022

Word History

Etymology

New Latin sinus + atrium

First Known Use

1913, in the meaning defined above

Time Traveler
The first known use of sinoatrial was in 1913

Dictionary Entries Near sinoatrial

Cite this Entry

“Sinoatrial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sinoatrial. Accessed 18 Dec. 2024.

Medical Definition

sinoatrial

adjective
si·​no·​atri·​al ˌsī-nō-ˈā-trē-əl How to pronounce sinoatrial (audio)
variants also sinuatrial
: of, involving, or being the sinoatrial node
sinoatrial block
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