ALL meanings of cassini division
Cas·si·ni di·vi·sion
C c - noun cassini division the gap or dark region between the two main outer rings of Saturn: it has a width of about 4,700 km (2,920 mi) 3
- noun cassini division a 3000-mile (4800-km) wide dark region that separates the middle and outermost rings of the planet Saturn. 1