sōlstitiālis e, adj.
solstitium, of the summer solstice, solstitial : dies, i. e. the longest : nox, i. e. the shortest , O.: orbis, the tropic of Cancer.—Of midsummer, of summer heat : tempus, L.— Of the sun, solar : annus, qui solstitiali circumagitur orbe, in a solar revolution , L.