Pluto

noun

Plu·​to ˈplü-(ˌ)tō How to pronounce Pluto (audio)
1
: the Greek god of the underworld compare dis
2
[New Latin] : a dwarf planet occupying an orbit that crosses the orbit of Neptune
Is Pluto a planet?: Usage Guide

In 2006 the International Astronomical Union defined planet in such a way as to exclude Pluto, reclassifying it instead as a dwarf planet. Although discussion of the matter continues, the change has been widely accepted.

Examples of Pluto in a Sentence

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.
The Jamie Oliver Channel, which nabbed FAST Channel of the Year honors in 2023, has carved out a presence across 14 distribution platforms, including Pluto TV and Roku. Naman Ramachandran, Variety, 12 Dec. 2024 The stop-motion classic is available on Amazon Prime Video, Apple TV+, Tubi TV and Pluto TV. Alexis Simmerman, Austin American-Statesman, 12 Dec. 2024 In his 1994 book The Curse of Rocky Colavito, Cleveland sportswriter Terry Pluto described the tribulations of the Cleveland franchise after Colavito was traded to Detroit as a curse on the franchise. Gordon G. Chang, Newsweek, 11 Dec. 2024 But, by one measure, the service may also be trailing rivals like Roku, Tubi and Pluto TV, which all appeared on Nielsen’s latest Gauge monthly tracker that tallies TV use in streaming and on linear devices. Erik Hayden, The Hollywood Reporter, 11 Dec. 2024 See all Example Sentences for Pluto 

Word History

Etymology

Latin Pluton-, Pluto, from Greek Ploutōn

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of Pluto was in the 14th century

Dictionary Entries Near Pluto

Cite this Entry

“Pluto.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Pluto. Accessed 22 Dec. 2024.

Kids Definition

Pluto

noun
Plu·​to ˈplüt-ō How to pronounce Pluto (audio)
: a large object in the outermost part of the solar system that is often considered one of the planets see note at planet

More from Merriam-Webster on Pluto

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!