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Sinus vs Fissure - What's the difference?

sinus | fissure |

As nouns the difference between sinus and fissure

is that sinus is a pouch or cavity in any organ or tissue, especially the paranasal sinus while fissure is a crack or opening, as in a rock.

As a verb fissure is

to split forming fissures.

sinus

English

Noun

(wikipedia sinus) (sinuses)
  • (anatomy) A pouch or cavity in any organ or tissue, especially the paranasal sinus.
  • A notch or depression between two lobes or teeth in the margin of an organ.
  • (pathology) An abnormal cavity or passage such as a fistula, caused by the destruction of tissue.
  • A bay of the sea; a recess in the shore.

    • Derived terms

    * sinusitis * ethmoid sinus * frontal sinus * maxillary sinus * sphenoid sinus * paranasal sinus

    Anagrams

    * ----

    fissure

    English

    Noun

    (en noun)
  • a crack or opening, as in a rock

    • Derived terms

    * fissure needle * fissure of Rolando * fissure of Sylvius * fissure vein

    Verb

    (fissur)
  • To split forming fissures.

    • Anagrams

    * ----