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.
Little is known about his birth and antecedents. 4. Grammar. a word, phrase, or clause, usually a substantive, that is replaced by a pronoun or other substitute later, or occasionally earlier, in the same or in another, usually subsequent, sentence. In Jane lost a glove and she can't find it, Jane is the antecedent of she and glove is the antecedent of it.