- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
aar
-
water
-
abdominal
-
board member
-
coverage
-
so long
-
additional
-
144
-
hystricomorpha
-
helen keller
- Hide translation
acetylene
acetylene /əˈsɛtəˌliːn/
noun
-
A colorless flammable gas used chiefly in welding and in organic synthesis
(
acetylene
, alkyne
, ethyne
)
a colorless flammable gas used chiefly in welding and in organic synthesis