Unnumbered source etymology
Original entry ↗A pouch or cavity in a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities (the paranasal sinus). · An irregular venous or lymphatic cavity, reservoir, or dilated vessel. · Relating to or denoting the sinoatrial node of the heart or its function of regulating the heartbeat. · An abnormal cavity or passage such as a fistula, leading from a deep-seated infection and discharging pus to the surface.
Learned borrowing from Latin sinus (“a bent surface, curve, hollow”). Doublet of sine.
Relationships mentioned by the source
These are extracted mentions, not a timeline or a verified sequence of immediate parents.
- Learned-borrowing mentionsinusla · a bent surface, curve, hollow
This page abbreviates 3 auxiliary source items. The etymology narrative is not shortened. Omission counts are available in the audit fields below; consult the original for complete auxiliary material.
Inspect preserved source fields
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"A pouch or cavity in a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities (the paranasal sinus).",
"An irregular venous or lymphatic cavity, reservoir, or dilated vessel.",
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"An abnormal cavity or passage such as a fistula, leading from a deep-seated infection and discharging pus to the surface."
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