Ohio Rev. Code Ann. § 3345.0211
(A) As used in this section and sections 3345.0212 to 3345.0214 of the Revised Code:
(5) "Materially and substantially disrupts" means when a person, with the intent to, or with knowledge of doing so, significantly hinders another person's or group's expressive activity, prevents communication of their message, or prevents the transaction of the business of a lawful meeting, gathering, or procession by either: