Lewis Short
rēfrīgĕrātĭo (noun F) : refrigero.
* Lit., a cooling, coolness: refrigeratio aestate, * Cic. Sen. 14, 46: aurae,Col. 11, 1, 16: caeli,Vitr. 6, 1, 3.
* Transf., a mitigation of diseases, Veg. 5, 56, 1.
Charlton T. Lewis, Charles Short, A Latin Dictionary