Bible Dictionaries
Xanthidium

Webster's Dictionary

(n.) A genus of minute unicellular algae of the desmids. These algae have a rounded shape and are armed with glochidiate or branched aculei. Several species occur in ditches, and others are found fossil in flint or hornstone.

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