interfulgent /ɪntəˈfʌldʒənt/ adjective1 •(rare) Shining between, through, or among.The window at each gable end stood open; into one fell the silvery splendor of the moon; the other was dusky with shadows, though beyond he caught the interfulgent rays among the sycamore leaves. — 1891 formsmore interfulgent · most interfulgent