As used in this act:
"Physical restraint" means the use of a personal restriction that immobilizes or reduces the ability of a student to move all or a portion of his or her body.
"Seclusion technique" means the involuntary confinement of a student alone in a room or area from which the student is physically prevented from leaving, but does not include a timeout.
"Timeout" means a behavior management technique that involves the monitored separation of a student in a non-locked setting, and is implemented for the purpose of calming.
N.J.S. § 18A:46-13.4