science fiction

noun

: fiction dealing principally with the impact of actual or imagined science on society or individuals or having a scientific factor as an essential orienting component
science-fictional adjective

Examples of science fiction in a Sentence

Time travel exists only in the realm of science fiction.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Post-apocalyptic scenarios are a longtime staple of science fiction, and director Ridley Scott’s latest film, The Dog Stars, falls firmly into that subgenre. Eric Berger, ArsTechnica, 17 Apr. 2026 Appearing straight out of science fiction, portable computers called cyberdecks have been growing in popularity, especially among Gen Z. Devika Rao, TheWeek, 16 Apr. 2026 Not to plant a flag and pick up some rocks, but to actually put down a moon base is like science fiction. Jeff Spry, Space.com, 15 Apr. 2026 Fighting over the soul of science fiction is a fight over the soul of the future, over the very nature of humanity. Literary Hub, 10 Apr. 2026 See All Example Sentences for science fiction

Word History

First Known Use

1898, in the meaning defined above

Time Traveler
The first known use of science fiction was in 1898

Browse Nearby Words

Cite this Entry

“Science fiction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/science%20fiction. Accessed 21 Apr. 2026.

Kids Definition

science fiction

noun
: fiction that deals with the influence of real or imagined science on society or individuals
science-fictional
ˈsī-ən(t)s-ˈfik-shnəl
-shən-ᵊl
adjective

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