Kata bahasa Indonesia
English word
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
Link, Gadget and Share 
WORDNET DICTIONARY
Noun buna has 1 sense
- buna(n = noun.substance) buna rubber - made by polymerizing butadiene; is a kind of rubber, synthetic rubber
CIDE DICTIONARY
buna, n. [trademark.].
a synthetic rubber made by copolymerizing butadiene with another substance such as acrylonitrile or styrene. [WordNet 1.5]
OXFORD DICTIONARY
buna, n. a synthetic rubber made by polymerization of butadiene.
Etymology
G (as BUTADIENE, natrium sodium)