No.
"Queen mother" is the title given to a widowed queen consort (queen consort = wife of reigning king) whose child by that marriage has become monarch. While her husband lived she held the title queen (consort); now she holds the title queen mother.
A prince consort (husband of a reigning queen) has never held the title "king". If widowed he therefore remains a prince, whether or not any of the children of his marriage to the deceased queen becomes monarch.