hnel

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|toxicology}} Highest no-effect level, the highest level of exposure to a substance at which there are no adverse effects on test subjects.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.