Bible Dictionaries
Tophus

Webster's Dictionary

(1):

(n.) One of the mineral concretions about the joints, and in other situations, occurring chiefly in gouty persons. They consist usually of urate of sodium; when occurring in the internal organs they are also composed of phosphate of calcium.

(2):

(n.) Calcareous tufa.

Bibliography Information
Webster, Noah. Entry for 'Tophus'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​t/tophus.html. 1828.