delta

One example is delta waves, the slow and rolling electrical patterns commonly associated with deep sleep.

From Science Daily ● Jul. 31, 2026

It’s also referred to as the delta sleep-inducing peptide.

From MarketWatch ● Jul. 24, 2026

For decades, so much water has been taken that the river seldom meets the sea in Mexico, and its delta, once filled with lush wetlands and forests, has shriveled to stretches of dry riverbed.

From Los Angeles Times ● Jul. 21, 2026

Fishermen working the sea between the Irrawaddy delta and the coast of Mon state found several other bodies nine days later.

From BBC ● Jul. 17, 2026

And Ethir Anduin he saw, the mighty delta of the River, and myriads of sea-birds whirling like a white dust in the sun, and beneath them a green and silver sea, rippling in endless lines.

From "The Fellowship of the Ring" by J.R.R. Tolkien

The world-renowned site features iron carbonate concretions that formed some 309 million years ago, fossilizing within them ancient creatures that had once thrived in the area's lush swamps, shallow seas and river deltas.

From Barron's ● Jun. 18, 2026

In 18 of the 40 deltas, this downward movement, known as subsidence, already exceeds local sea-level rise.

From Science Daily ● Apr. 20, 2026

To assess the risk to China's deltas, the researchers combined geological records, measurements of land subsidence, and data on human impacts.

From Science Daily ● Oct. 23, 2025

That means they are also imperiling some of the world’s most important food-producing lowlands in the Nile and Mekong deltas and cities from Shanghai to New York.

From Salon ● Jul. 28, 2025

Her eyes were the same deep-set smiles as her son’s, with more extensive deltas of creases at the corners.

From "Strange the Dreamer" by Laini Taylor