sinus

FREQ #19644 ★☆☆☆☆

n. 窦, 静脉窦, 凹陷处

发音

其它 /ˈsaɪ.nəs/

词形变化

sinuses 复数 sinuses

释义与例句

n.
  1. 1.

    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).

    医学 生物 动物学
  2. 2.

    An irregular venous or lymphatic cavity, reservoir, or dilated vessel.

    医学
  3. 3.

    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.

    窦性

    定语 医学
  4. 4.

    An abnormal cavity or passage such as a fistula, leading from a deep-seated infection and discharging pus to the surface.

    医学
  5. 5.

    A rounded notch or depression between two lobes or teeth in the margin of a leaf or petal.

    生物 植物学
  6. 6.

    A bay of the sea; a recess in the shore.

  7. 7.

    Synonym of sine.

    数学

词汇关系

相关短语

词源

Learned borrowing from Latin sinus (“a bent surface, curve, hollow”). Doublet of sine.

来源:wiktionary