n a pungent colorless unsaturated liquid aldehyde made from propene
常见例句
1
A white amorphous substance obtained as a polymeric modification of acrolein.
2
A polymeric modification of acrolein obtained by heating it with caustic potash
3
Any one of three isometric bases (C6H7N) related to pyridine, and obtained from bone oil, acrolein ammonia, and coal-tar naphtha, as colorless mobile liquids of strong odor
