- (symbol CH2O)
a gas with a strong smell 甲醛 - (also specialist formalin)
a liquid made by mixing formaldehyde and water, used for preserving biological specimens, making plastics and as a disinfectant 福尔马林；甲醛水溶液 His most famous artistic offering consists of a dead shark floating in a tank of formaldehyde. 他最著名的艺术作品是漂浮在甲醛罐中的一条死鲨鱼。
Word Originlate 19th cent.: blend of formic acid and aldehyde.