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sink in
sinkage
sinker
sinker bond
sinkerball
sinkhole
sinking fund
Sinn Féin
sinner
Sino-
Sino-Tibetan
sinoatrial
sinoatrial node
Sinology
Sinope
sinsemilla
sinter
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sinus node
si·nus node (plural si·nus nodes)


noun 
Definition:
 
anatomy 
Same as  sinoatrial node
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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