Bible Dictionaries
Subtrihedral

Webster's Dictionary

(a.) Approaching the form of a three-sided pyramid; as, the subtrihedral crown of a tooth.

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