non·​tox·​ic | \ˌnän-ˈtäk-sik \

Definition of nontoxic 

(Entry 1 of 2)

: not toxic a nontoxic work environment a nontoxic, biodegradable pesticide nontoxic household cleaners


plural nontoxics

Definition of nontoxic (Entry 2 of 2)

: a nontoxic substance … began searching for nontoxics to control nematodes, insects and invasive species.— Don Curlee

Examples of nontoxic in a Sentence

Recent Examples on the Web: Adjective

That’s why on November 8, the GH Institute is teaming up with Made Safe, an organization that educates consumers and companies about nontoxic ingredients, to host the second Raise the Green Bar Summit. The Good Housekeeping Institute, Good Housekeeping, "Here's everything you need to know about the 2018 Raise the Green Bar Sustainability Summit.," 16 Oct. 2018 Love Goodly’s bi-monthly subscription service sends you 4-5 mostly full-sized products, all of which are nontoxic and vegan. Emma Sarran Webster, Teen Vogue, "11 Beauty Subscription Boxes For Every Beauty Regimen," 30 July 2018 My dream toothbrush is coated in a nontoxic version of Rustoleum's Neverwet, the magically hydrophobic coating that makes water jump off surfaces. Rachel Z. Arndt, Popular Mechanics, "The Quest for the Best Electric Toothbrush," 13 Nov. 2017 The nontoxic biodegradable formula is made from plants and never tested on animals. Kirby Adams, The Courier-Journal, "Can this eco-friendly body glitter change music festival culture?," 12 July 2018 In the final reckoning, nontoxic aphids fared very poorly when the Asian lady beetles were around, as did other ladybugs. Veronique Greenwood, New York Times, "Ladybugs, Aphids and the Toxic Combat That Might Be Happening in Your Garden," 1 June 2018 Cheap, nontoxic and readily available, vinegar is one of my favorite go-to household cleaners. Heloise, Houston Chronicle, "Jam, jelly … what's the difference?," 11 July 2018 Certainly poisonous plants, like certain types of lilies, daisies and azaleas, pose a much bigger threat than nontoxic plants, like roses, bamboo or baby’s breath. Michelle Higgins, New York Times, "Dogs and Cats and Decorating: It’s Easier Than You Think," 1 May 2018 But Elmer’s doesn’t dry the right way and is inedible, if nontoxic. Tamar Adler, Vogue, "What Statement Should Your Wedding Cake Make?," 17 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nontoxic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of nontoxic


circa 1862, in the meaning defined above


1976, in the meaning defined above

Keep scrolling for more

Learn More about nontoxic

Statistics for nontoxic

Last Updated

12 Nov 2018

Look-up Popularity

Time Traveler for nontoxic

The first known use of nontoxic was circa 1862

See more words from the same year

Keep scrolling for more

More Definitions for nontoxic


non·​tox·​ic | \-ˈtäk-sik \

Medical Definition of nontoxic 

1 : not toxic nontoxic chemicals

2 of goiter : not associated with hyperthyroidism

More from Merriam-Webster on nontoxic

Spanish Central: Translation of nontoxic

Comments on nontoxic

What made you want to look up nontoxic? Please tell us where you read or heard it (including the quote, if possible).


the figure or shape of a crescent moon

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
Name That Thing

Test your visual vocabulary with our 10-question challenge!


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

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