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.
An antecedent is the word that a pronoun replaces or refers to. Any time that you have a pronoun, you'll have an antecedent, even if it's not in the very same sentence. This makes sense; if we didn't have an antecedent for every pronoun, we'd be left with a lot of confusion.