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  • Mason jar
    Mason jar
    noun
    a glass jar with a wide mouth and an airtight screw top, much used in home canning.
  • mason jar
    mason jar
    noun
    an airtight glass jar for preserving food

Mason jar

American  

noun

  1. a glass jar with a wide mouth and an airtight screw top, much used in home canning.


mason jar British  

noun

  1. an airtight glass jar for preserving food

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Mason jar

1880–85, named after John L. Mason, 19th-century American who patented it in 1858

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

I put a big Mason jar in front of a coffee maker before I go to bed—I use that as a visual cue to delay coffee for an hour and drink water first.

From The Wall Street Journal Feb. 16, 2026

Place the fine-cut chard stems in a Mason jar or other heatproof narrow container.

From Seattle Times Feb. 9, 2024

Conversely, the "Mason jar" method involves snipping the bottoms of your herb stems, storing the herbs upright in a jar with about an inch of fresh, cool water, and then sealing completely before refrigerating.

From Salon Jul. 18, 2023

She somehow convinced the chef to give her a whole Mason jar of the hot sauce.

From Los Angeles Times May 12, 2023

It contained a blanket, a sleeping bag, several old throw pillows, and one unmarked Mason jar filled with some sort of liquid.

From "An Abundance of Katherines" by John Green

Early in the grand opening event, people began to huddle near a table decorated with wildflowers in a mason jar and a yellow legal pad.

From Los Angeles Times Jun. 21, 2023

The sauce can be made and refrigerated in a glass mason jar up to one week in advance.

From Washington Times May 28, 2023

Cool completely before transferring to an airtight container or mason jar.

From Salon Jun. 26, 2022

Combine the two in a large mason jar or another large, sealable vessel and stir vigorously to ensure that the grounds are moistened.

From Salon Jan. 24, 2022

He’d had a button and a pennant collection, a thousand pennies in a large mason jar, a fishbowl, and a model tin lizzie hung from a strand of wire in one corner.

From "Snow Falling on Cedars: A Novel" by David Guterson

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