Brace/Bracer: A brace is the physical connection from one top person to another top person that helps provide stability. A top person’s hair and/or uniform is not a legal body part to use while bracing a pyramid or pyramid transition. A bracer is a top person in direct physical contact with another top person that helps provide stability. A required bracer cannot pass through an inverted position during a transition.
(The definitions used in the videos are different, but the examples shown in the videos remain useful)