noun Date: 1869 a colorless toxic gas N 2 O 4 that is a dimer of nitrogen dioxide and that in liquid form is used as an oxidizer in rocket engines
NITROGEN TETROXIDE
Meaning of NITROGEN TETROXIDE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012