plural of Ricca

A surname.

(mathematics) Any first-order ordinary differential equation that is quadratic in the unknown function.

plural of Riccati equation

plural of Riccardi

A surname from Italian.

(organic chemistry) Any of a group of macrocyclic phenolic bisbenzyls present in several plants

A village and parish in East Ayrshire council area, Scotland (OS grid ref NS4335). / A suburb of Edinburgh, Edinburgh council area, Scotland (OS grid ref NT1769). / A suburb of Christchurch, New Zealand.

A village and civil parish in Selby district, North Yorkshire, England (OS grid ref SE6237).