I mentioned in my post that I didn't know what the criminal code was in the US. I also took for granted that posters knew I was from Canada. Thanks for clarifying this at the beginning of your post. The terms are specific like you say: abuse, conduct, assault, misconduct and exploitation.
The fact that IHOPKC's spokesperson used the words "inappropriate behavior" and "sexual immorality" shows they want to stay away from legal definitions to safeguard themselves. The Advocate Group who represents the victims and includes a lawyer used "clergy sexual abuse" in both of their public statements.