Meaning

noun a long narrow depression in a surface

noun a long narrow opening

noun (anatomy) a long narrow slit or groove that divides an organ into lobes

originEtymology tree Proto-Indo-European *bʰeyd- Proto-Indo-European *-né- Proto-Indo-European *-ti Proto-Indo-European *bʰinédti Proto-Italic *findō Latin findō Proto-Indo-European *-tew-? Proto-Indo-European *-r-eh₂? Latin -tūra Latin fissūrader. Old French fissurebor. Middle English fissure English fissure From Middle English fissure, from Old French fissure, from Latin fissūra (“a cleft, chink”),…

Etymology from Wiktionary, CC BY-SA 3.0