NITROGEN DIOXIDE

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

A highly poisonous brown gas (NO2)

Classified under:

Nouns denoting substances

Hypernyms ("nitrogen dioxide" is a kind of...):

dioxide (an oxide containing two atoms of oxygen in the molecule)

gas (a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely)

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