fissured

UK: /ˈfɪʃəd/

From the verb fissure: (⇒ conjugate)

fissured is: ⓘ

v past

v past p

WordReference Random House Learner's Dictionary of American English © 2025

fis•sure /ˈfɪʃɚ/   n. [countable]

1. a narrow opening, division, or groove:
   a fissure in the earth.

WordReference Random House Unabridged Dictionary of American English © 2025

fis•sure  (fish′ər), n., v., -sured, -sur•ing. 
n. 

1. a narrow opening produced by cleavage or separation of parts.
2. cleavage (def. 1).
3. Anatomy a natural division or groove in an organ, as in the brain.

v.t. 

4. to make fissures in;
   cleave;
   split.

v.i. 

5. to open in fissures;
   become split.

• Latin fissūra cleaving, cleft, fissure, equivalent. to fiss(us) divided (see fissi-) + -ūra -ure
• late Middle English 1375–1425

fis′su•ral, adj. 
fis′sure•less, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::

fissure / ˈfɪʃə/ noun

1. any long narrow cleft or crack, esp in a rock
2. a weakness or flaw indicating impending disruption or discord
3. a narrow split or groove that divides an organ such as the brain, lung, or liver into lobes
   See also sulcus

verb

1. to crack or split apart

Etymology: 14th Century: from medical Latin fissūra, from Latin fissus split