1. A type of sticky, clay-rich soil formed by weathering of parent rock material, typically found in tropical and subtropical regions; a soil horizon rich in iron and aluminum oxides.
Usage: geology; soil science; technical term

Examples

• The gumbotils in this region make agriculture challenging due to their poor drainage.
• Geologists identified a thick layer of gumbotils beneath the surface.
• The red color of the gumbotils indicates high iron oxide content.
• Gumbotils are commonly found in areas with high rainfall and warm temperatures.