fissure

/ˈfɪʃ.ə(ɹ)/

ot noun

A crack or opening, as in a rock.
A groove, deep furrow, elongated cleft or tear; a sulcus.

fe’l verb

To split, forming fissures.

Manbalar: Wiktionary (Free Dictionary API orqali), Datamuse, Tatoeba (CC BY 2.0 FR), MyMemory.