SINOATRIAL NODE


Meaning of SINOATRIAL NODE in English

[ ˌsʌɪnəʊ'eɪtrɪəl ]

■ noun Anatomy a small body of specialized muscle tissue in the wall of the heart whose contractions regulate the heartbeat.

Origin

early 20th cent.: from sinus + atrial (see atrium ).

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.