Webster's Revised Unabridged Dictionary · 1913

Hecatompedon

Hecatompedon , noun

[Greek {not transcribed} hundred feet long, {not transcribed} the Parthenon; {not transcribed} hundred + {not transcribed} foot.]

(Architecture) A name given to the old Parthenon at Athens, because measuring 100 Greek feet, probably in the width across the stylobate.