nitr-
1.
variant of
nitro-
before a vowel:
nitramine.
British Dictionary definitions for
nitr-
nitro-
combining form
1.
indicating that a chemical compound contains a nitro group, -NO
2
:
nitrobenzene
2.
indicating that a chemical compound is a nitrate ester:
nitrocellulose
Word Origin
from Greek
nitron
natron