What does NNF stand for?

NNF stands for "Not Normally Flowing"

How to abbreviate "Not Normally Flowing"?

"Not Normally Flowing" can be abbreviated as NNF

What is the meaning of NNF abbreviation?

The meaning of NNF abbreviation is "Not Normally Flowing"

What does NNF mean?

NNF as abbreviation means "Not Normally Flowing"