Wake
Wake means all changes in the vertical height of the water's surface caused by the passage of a water vehicle, including a vessel's bow wave, stern wave, and propeller wash, or a combination thereof;
Source
50 CFR § 17.102
Scoping language
In addition to definitions contained in the Acts, part 10 of this subchapter, and 17.3 of this part, and unless the context otherwise requires, in this subpart: