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.
Stepping into the Hayes Theater, the science fiction of it all may come as a surprise. Shania Russell, Entertainment Weekly, 9 Dec. 2025 Investors and technologists on the other side dismiss some of these concerns as science fiction, and argue that the private sector is currently doing a good job balancing safety and the tech race with China. Max Tani, semafor.com, 8 Dec. 2025 Producer Miles Dale, who has collaborated with del Toro many times previously, stressed the film’s faithfulness to Mary Shelley’s original 1818 classic, which many call the very first science fiction story, compared to the 1931 James Whale version. Dessi Gomez, Deadline, 8 Dec. 2025 For decades, this idea lived at the edge of science fiction. Monika Piotrowska, The Conversation, 8 Dec. 2025 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 20 Dec. 2025.

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

More from Merriam-Webster on science fiction

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!