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 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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sinoatrial.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 20 Jul. 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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