heat dome

noun

plural heat domes

: a large weather pattern characterized by high atmospheric pressure that collects and holds an unusual amount of heat over a particular area

Examples of heat dome in a Sentence

Recent Examples on the Web

The South is enduring a long heat wave as a heat dome sits over the region. — ABC News, 17 Sep. 2026

As a heat dome pushes temperatures into the 90s for the first few days of September, Pittsburgh is swapping to remote learning at some schools. — Finch Walker, USA Today, 31 Aug. 2026

After a summer punctuated by heat waves and sprawling heat domes, the idea of squeezing in one more hot-weather vacation may have lost some of its appeal. — Brittany Anas, Forbes.com, 30 Aug. 2026

The Southeast is roasting under a heat dome that’s set to send several rounds of severe storms and flooding to the Northeast and Great Lakes this week. — Tyler Ory, CNN Money, 30 Aug. 2026

Word History

First Known Use

1985, in the meaning defined above

Rhymes for heat dome

• biome
• genome
• nichrome
• noisome
• prodrome
• radome
• rhizome
• shalom
• syndrome
• acrosome
• aerodrome
• catacomb