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Definitions

spontaneous

[spon-tey-nee-uhs] / spɒnˈteɪ ni əs /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In 2024, for example, more than 700 newborns died from spontaneous bleeding in their brains, which could have been complicated by liver disease or prematurity.

From Salon • May 7, 2026

Shapiro wants to bring back the spontaneous phone call.

From The Wall Street Journal • May 1, 2026

That moment came courtesy of a guy wearing a Cubs uniform, but Monday grew up in Santa Monica and delivered his spontaneous commemoration of Flag Day in the year of America’s bicentennial.

From Los Angeles Times • Apr. 19, 2026

"Gravitational waves modulate the quantum field, which in turn affects spontaneous emission," said Jerzy Paczos, a PhD student at Stockholm University.

From Science Daily • Apr. 10, 2026

Departing from Goedart’s example, she also included eggs, declaring boldly that eggs were the source of every caterpillar despite widespread public belief in spontaneous generation of insects.

From "The Girl Who Drew Butterflies: How Maria Merian's Art Changed Science" by Joyce Sidman




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