Where does “sinoauricular” come from?

sinoauricular (English) comes from English auricular, from Latin auricularis, from Latin auricula, from Latin auris, from Proto-Italic *auzis — ear.

sinoauricular (English): Synonym of sinoatrial

Definitions

  1. Synonym of sinoatrial

Ancestry of “sinoauricular”, step by step

sinoauricular traces back through two separate lines of ancestry.

via English auricular

StepLanguageWordMeaning
1EnglishauricularOf or pertaining to the ear; Of or pertaining to...
2Latinauricularisof or pertaining to the ear; auricular;...
3LatinauriculaThe external part of the ear; ear-lap; The ear...
4Latinaurisear; dative/ablative plural of aura
5Proto-Italic*auzisear

via English Sino

StepLanguageWordMeaning
1EnglishSino
Every word from Proto-Italic *auzisEvery word from Latin aurisEvery word from Latin auricula