Screwcaps are closures used on bottles and containers, typically made of metal or plastic. They consist of a threaded cap that can be screwed onto the bottle, providing a secure seal. They are commonly used as an alternative to corks or other types of bottle closures and can be easily opened and closed using a bottle opener or by hand.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Some bottle openers. Explanations are generated by AI and may be inaccurate.