thermal spring

noun

1. a spring whose temperature is higher than the mean temperature of groundwater in the area.

Word History and Origins

Origin of thermal spring¹

First recorded in 1790–1800

Example Sentences

Ventana Wilderness shows the best of California’s Big Sur coast, with waterfalls, thermal springs, sky-scraper-high redwoods, and Pacific-view peaks as the cherry on top.

From Outside Online