Phrase guide

sinoatrial node

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

A group of cells located in the wall of the right atrium of the heart that originates the impulses stimulating the heartbeat.

Definition source: English Wiktionary via Wiktextract

Topics: anatomy, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: sinus node, pacemaker

Antonyms: none provided

2

noun

Meaning 2

a specialized bit of heart tissue that controls the heartbeat

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: pacemaker, cardiac pacemaker, SA node

Antonyms: none provided

Broader terms: cardiac muscle, heart muscle

History

Etymology

No etymology was provided for this word.

Across languages

Translations

30 source translations are retained for this English entry.

  • Afrikaans: sino-atriale knoop — a group of cells
  • Chinese Cantonese: 竇房結 /窦房结 (dau6 fong4 git3) — a group of cells
  • Chinese Mandarin: 竇房結 /窦房结 (dòufángjié) — a group of cells
  • Dutch: sinusknoop — a group of cells
  • Finnish: sinussolmuke — a group of cells
  • Finnish: eteissolmuke — a group of cells
  • French: nœud sinusal — a group of cells
  • French: nœud sino-auriculaire — a group of cells
  • French: nœud sinu-atrial — a group of cells
  • German: Sinusknoten — a group of cells
  • German: Sinuatrial-Knoten — a group of cells
  • Greek: φλεβόκομβος (flevókomvos) — a group of cells
  • Hungarian: szinuszcsomó — a group of cells
  • Japanese: 洞房結節 (dōbōkessetsu) — a group of cells
  • Kazakh: қойнау-жүрекше түйіні (qoinau-jürekşe tüiını) — a group of cells
  • Northern Kurdish: girê berika guhike — a group of cells
  • Latin: nodus sinuatrialis — a group of cells
  • Latin: nodus sinuosus — a group of cells
  • Persian: گره سینوسی- دهلیزی — a group of cells
  • Polish: węzeł zatokowo-przedsionkowy — a group of cells
  • Portuguese: nó sinusal — a group of cells
  • Portuguese: nódulo sinoauricular — a group of cells
  • Portuguese: nodo sinoatrial — a group of cells
  • Romanian: nod sinusal — a group of cells
  • Romanian: nod sinoatrial — a group of cells
  • Spanish: nodo sinoauricular — a group of cells
  • Spanish: nódulo sinusal — a group of cells
  • Spanish: nodo seno-auricular — a group of cells
  • Spanish: nodo sinoatrial — a group of cells
  • Vietnamese: nút xoang — a group of cells