triggerblock
nounUK /ˈtrɪɡəblɒk/
US /ˈtrɪɡərblɑːk/
A triggerblock is a small part that stops something from going off by accident.
The engineer installed a triggerblock so the machine would not start by mistake.
OTHER MEANINGS
2. A mental barrier that stops a person from reacting or starting something.
Fear of failure became a triggerblock that kept him from trying.
3. In computing, a rule that prevents an automatic action from running.
The developer added a triggerblock to stop the script from firing twice.
4. A physical wedge placed to keep a lever from moving.
He slid a triggerblock under the lever before climbing the ladder.