Synonym: fissure. ... 2. In neuroanatomy, a particularly deep sulcus of the surface of the brain or spinal cord. ... Origin: L. Fr. Findo, to cleave ... (05 Mar 2000) ... 
(fis-u´rә) pl. fissu´rae Latin word meaning fissure.
Type: Term Pronunciation: fi-sū′ră, -soo′rē Definitions: 1. In neuroanatomy, a particularly deep sulcus of the surface of the brain or spinal cord. Synonyms: fissure
fissura In neuroanatomy, a particularly deep sulcus (groove or furrow) of the surface of the brain or spinal cord.