bottle cap

American  

noun

bottle caps plural

1. a device for closing or sealing a bottle, especially a metal cover with a cork gasket fitting tightly over the mouth of a glass or plastic bottle, held in place by crimping the edge of the cap over the lip or flange of the bottle.

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Other Word Forms

Noun Inflected Forms

• bottle caps
  plural

Etymology

Origin of bottle cap

An Americanism dating back to 1925–30

Example Sentences

See Examples For:

bottle cap

Even the smallest amount of standing water, for example in a bottle cap, is enough space for Aedes aegypti to lay eggs, Brannon said.

From Los Angeles Times ● Feb. 27, 2026

He was armed with nothing but an oversized bottle cap on his back.

From Seattle Times ● Jun. 2, 2024

“During our experiments with tactile sensors,” he says, “we found that tasks like unstacking cups and opening a bottle cap were significantly harder—and perhaps more useful—than rotating objects.”

From Scientific American ● Jul. 31, 2023

They gave him water to drink from a bottle cap before pulling him out of the wreckage, nearly 45 hours after the major quake.

From BBC ● Feb. 8, 2023

Ernie laughed at that, finally hitting the nail through the bottle cap.

From "As Brave As You" by Jason Reynolds