door opener

noun door openers

1. The control mechanism by which a door is latched and unlatched. Last, door systems are examined, particularly locking and latching mechanisms, door openers and door closers.
2. Any of various devices designed to make opening a door easier. Car door openers which are said to permit easy one-man operation are available. These devices consist of a light chain fall for attaching to the door handle. When door openers are used, the fixed end of the fall will not be fastened to a car ladder or grab iron.
3. Any of various devices to automatically open a door in response to a sensor or signal sent from a controller. A radio control for a door opener operating above 70 MHz manufactured after March 24, 1971 shall be certificated pursuant to Subpart B of this part.
4. A crowbar-like tool used by firefighters to quickly force locked doors to open. The two most common types of door openers used are the "Hale" and the "Detroit".
5. Someone who opens doors. Imagine our language type as a "door opener." There are two kinds of door openers: “interpreter openers" and "compiler openers." An interpreter opener has a rough job. He must carry a large bag of keys wherever he goes.
6. Any tactic, approach, or giveaway item employed by a salesman to capture the interest of a potential customer. […] when working the territory cold, you will find these little notes great door openers.
7. A communication technique designed to encourage someone to speak openly. The therapeutic interviewer can use a door opener to start to explore a particular client concern.
8. Someone or something that provides someone with opportunities that would otherwise be unavailable to them. There are so many things that we experience that could be door openers for demons.