Definitions for ictinusɪkˈtaɪ nəs
Random House Webster's College Dictionary
fl. mid-5th century b .c ., Greek architect: a designer of the Parthenon.
The Nuttall Encyclopedia
great Greek architect of the 5th century B.C., a contemporary of Pericles, designer of temples at Bussæ and Eleusis, and joint-designer with Callicrates of the world's one perfect building, the Parthenon, at Athens (437 B.C.).