water vapor

noun

: water in a vaporous form especially when below boiling temperature and diffused (as in the atmosphere)

Examples of water vapor in a Sentence

Recent Examples on the Web

It is usually made using plastic or metal with a grille that facilitates the water vapor circulating the humidor. —Bestreviews, Mercury News, 6 Nov. 2025

The particles react with water vapor and other gases, creating sulfate aerosols. —Chris Young, Interesting Engineering, 30 Oct. 2025

This is because warmer air can carry greater amounts of moisture, and warming seas also allow for the evaporation of greater amounts of water vapor into the atmosphere, giving hurricanes more energy. —Andrew Freedman, CNN Money, 29 Oct. 2025

More intense rainfall events from storms of all kinds are becoming more likely as warming temperatures prime the atmosphere to hold more water vapor. —Meghan Bartels, Scientific American, 23 Oct. 2025

Word History

First Known Use

15th century, in the meaning defined above

Rhymes for water vapor

• caper
• paper
• raper
• scraper
• shaper
• taper
• newspaper
• notepaper
• sandpaper
• skyscraper
• wallpaper
• wastepaper

Kids Definition

water vapor

noun

: water in a gaseous form especially when below boiling temperature and spread through the atmosphere

Medical Definition

water vapor

noun

: water in a vaporous form especially when below boiling temperature and diffused (as in the atmosphere)