sinus

/ˈsaɪnəs/
danh từ
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Danh từ
  1. —
    (anatomy, zootomy) 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).
  2. —
    (anatomy) An irregular venous or lymphatic cavity, reservoir, or dilated vessel.
  3. —
    (pathology) An abnormal cavity or passage such as a fistula, leading from a deep-seated infection and discharging pus to the surface.
  4. —
    (botany) A rounded notch or depression between two lobes or teeth in the margin of a leaf or petal.
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