soap bubble

noun

1. a bubble of soapsuds.
2. something that lacks substance or permanence.

soap bubble

noun

1. a bubble formed from soapy water
2. something that is ephemeral but attractive

Word History and Origins

Origin of soap bubble¹

First recorded in 1805–15

Example Sentences

Our cells are surrounded by a fragile membrane that's only 5 nanometers thick, 1/20 of a soap bubble.

From Science Daily

The clusters can undergo phase separation and form dense, liquid droplets, which in turn merge into larger aggregations -- similar to how soap bubbles coalesce.

From Science Daily

Over billions of years, gravity pulled additional material into those baryon-dense regions, and galaxies and galactic clusters preferentially formed along their boundaries in thin shells like dust settling on a soap bubble.

From Scientific American

The hopes of the Vikings are as fleeting and ethereal as the snowflake-like soap bubbles that float down from the ceiling of the stadium before kickoff, giving the place a winter wonderland effect.

From Los Angeles Times

One example involves the skin of a soap bubble stretched over a surface.

From Scientific American