ri·mose \(ˈ)rī|mōs\adjective orri·mous\ˈrīməs\ Etymology: Latin rimosus, from rima slit, crack, fissure + -osus, -ose, -ous — more at row : having numerous clefts, cracks, or fissures < the rimose bark of a tree > • ri·mose·lyadverb • ri·mos·i·ty\rīˈmäsəd.ē\noun-es