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

The acidic properties of this inexpensive, nontoxic, and eco-friendly household cleaner help to break down grease, loosen dried-on food, and neutralize funky odors. —Gemma Johnstone, The Spruce, 10 Jan. 2026

This Sculpey Clay is also highly malleable and features a nontoxic formula. —Bestreviews, Mercury News, 8 Jan. 2026

It’s made of pine with a nontoxic, weather-resistant coating. —Dallas Morning News, 6 Jan. 2026

Making dinner for the family is easy thanks to its spacious 6-quart capacity, and because the insert is crafted with a nontoxic, nonstick coating, food seamlessly releases from the bottom, making cleanup a total breeze. —Alicia Geigel, Southern Living, 9 Dec. 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