Definition of "nitro"

(uncountable, chemistry) the univalent NO2 functional group.  examples

(uncountable, informal) nitroglycerin, especially as medication.  examples

(countable, informal) A beer that is nitrogenated to give it a more creamy head.  examples

(uncountable, informal) nitromethane.  examples

(uncountable, informal) nitrogen, especially as liquid nitrogen.  quotations  examples

(chemistry) Containing the nitro group.  examples