Phrase guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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noun
A coloured diamond symbol identifying the specific risks posed by a hazardous material according to the NFPA 704 classification.
Definition source: English Wiktionary via Wiktextract
Usage: informal
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
One of the four divisions of the diamond-shaped symbol indicates flammability.
