Parathyroid Disease and hyperparathyroidism can be caused by several things... But, most parathyroid problems occur because one parathyroid gland develops into a benign parathyroid tumor. This page describes what causes the parathyroid gland to go bad and grow into a parathyroid tumor (causing hyperparathyroidism).
antecedent noun [C usually pl]. âº something âexisting or âhappening before, esp. as the âcause of an âevent or âsituation: The âbook âdealt with the âhistorical antecedents of the Civil War.
The use of the pronoun, the disuse of the grammar pulled him up short. The antecedent of a pronoun is the noun which goes before it, and for which the pronoun stands. He whispered the pronoun so softly that it sounded like a sigh. In grammar it is a pronoun of the first person and singular number.