nontoxic

1 of 2

adjective

non·​tox·​ic ˌnän-ˈtäk-sik 

: not toxic

a nontoxic work environment

a nontoxic, biodegradable pesticide

nontoxic household cleaners

nontoxic

2 of 2

noun

plural nontoxics

: 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

Masks should not block vision or breathing; makeup or face paint is a safer alternative, though make sure any products used are nontoxic and labeled for use on skin. —Katia Hetter, CNN Money, 24 Oct. 2025

The gel is nontoxic and can be used as a tool to help protect aquatic ecosystems. —Amaris Encinas, USA Today, 14 Oct. 2025

Our team has been fans of Caraway cookware for years, thanks to its nontoxic, nonstick properties. —Kate McGregor, Architectural Digest, 8 Oct. 2025

Foam mats should feature nontoxic foam that doesn’t contain BPA, PVC, phthalates, latex or lead. —Bestreviews, Mercury News, 29 Sep. 2025

Word History

First Known Use

Adjective

circa 1862, in the meaning defined above

Noun

1976, in the meaning defined above

Rhymes for nontoxic

• anoxic
• hypoxic
• antitoxic
• cytotoxic
• genotoxic
• nephrotoxic
• neurotoxic
• phytotoxic
• hepatotoxic
• toxic

Medical Definition

nontoxic

adjective

non·​tox·​ic -ˈtäk-sik 

1

: not toxic

nontoxic chemicals

2

of goiter : not associated with hyperthyroidism