The most common and most likely answer to this crossword clue is the 6 letter word ALKENE which also is the latest solution we found used in King Syndicate in 2011.
Ethylene or propylene crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| ALKENE | 100 % | 6 | 
Words with a meaning similar to the clue: Ethylene or propylene
These words may or may not be a possible solution to this crosswords clue.- polymer
 - alkene
 - abs plastic
 - acetylene
 - gas
 - glycol
 - olefin
 - bromine
 - benzene
 - deuterium
 - dioxide
 - silica
 
Crossword Answer definitions
ALKENE noun- An unsaturated, aliphatic hydrocarbon with one or more carbon–carbon double bonds
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution