Yes, buna is a Scrabble word!
...and is worth 6 points in Scrabble, and 9 points in Words with Friends
buna
Noun
1. Made by polymerizing butadiene
What Scrabble words can I make with the letters in buna?
3 Letter Words
2 Letter Words
Noun
1. Made by polymerizing butadiene
3 Letter Words
2 Letter Words