The Open Dictionary

fissure

名詞

UK/ˈfɪʃ.əʳ/
US/ˈfɪʃ.ɚ/

定義 fissure 名詞

  1. Countable

    A long, narrow opening or crack in rock or earth.

    • The earthquake created many fissures in the ground.

    • Years of erosion caused fissures to appear in the rock.

    • Geologists are studying the fissures in the region.

  2. Countablemedicalspecialized

    A long, narrow groove or split in the surface of an organ, especially the brain.

    • The fissures in the cerebral cortex play a vital role in brain function.

    • Doctors observed some fissures in the brain through a brain scan.

    • The complex structure of the brain includes many fissures and folds.

  3. Countablemedicalspecialized

    A narrow crack or groove on the surface of a tooth.

    • The dentist found several small fissures while examining the teeth.

    • Untreated fissures on the tooth surface can lead to cavities.

    • Regular dental check-ups help to detect fissures on teeth early.