Bible Dictionaries
Plethrum

Webster's Dictionary

(n.) A long measure of 100 Greek, or 101 English, feet; also, a square measure of 10,000 Greek feet.

Bibliography Information
Webster, Noah. Entry for 'Plethrum'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/plethrum.html. 1828.