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

ˈsī-ən(t)s-ˈfik-sh(ə-)nəl 

adjective

Examples of science fiction in a Sentence

Time travel exists only in the realm of science fiction.

Recent Examples on the Web

Technologies that once lived squarely in the realm of science fiction are now entering nurseries, classrooms, and family life at extraordinary speed, capturing the attention of adults and children alike. — Dana Suskind, Time, 14 July 2026

Other books include the 1999 science fiction novel Shiva, the 2002 On the Wings of the Wind, and the 2009 novel Asieh Between Two World. — News Desk, Artforum, 13 July 2026

The film is a post-apocalyptic science fiction adaptation of the 2012 novel of the same name. — Rebecca Aizin, PEOPLE, 13 July 2026

This unique platform bridges science fiction and reality, fostering curiosity and engagement with the rapid advancements shaping our world. — Bernard Marr, Forbes.com, 10 July 2026

Word History

First Known Use

1898, in the meaning defined above

Rhymes for science fiction

• antifriction
• benediction
• contradiction
• crucifixion
• dereliction
• interdiction
• jurisdiction
• malediction
• addiction
• affliction
• constriction
• conviction

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