ni·trog·e·nase 
(nī-trŏjə-nās′, -nāz′, nītrə-jə-)
(nī-trŏjə-nās′, -nāz′, nītrə-jə-)n.
An enzyme of nitrogen-fixing bacteria that catalyzes the conversion of nitrogen to ammonia.
- flying boat
- flying bomb
- flying bridge
- flying buttress
- flying dragon
- Flying Dutchman
- flying field
- flying fish
- flying fox
- flying frog
- flying gecko
- flying gurnard
- flying head
- flying jib
- flying lemur
- flying lizard
- flying machine
- flying mare
- flying phalanger
- flying saucer
- flying squad
- flying squirrel
- flying start
- flying wedge
- flying wing