Ohio Rev. Code Ann. § 5107.02
As used in this chapter:
(D) "Domestic violence" means being subjected to any of the following:
(G) "Minor child" means either of the following:
(H) "Minor head of household" means a minor child who is either of the following:
(K) "Specified relative" means the following individuals who are age eighteen or older:
(1) The following individuals related by blood or adoption: