Dictionary.net

• A white, amorphous, deliquescent powder, (CO.H)2, obtained by the partial oxidation of glycol. It is a double aldehyde, between glycol and oxalic acid.

2010 - New Age Dictionary Database
By Oddity Software

• A white, amorphous, deliquescent powder, (CO.H)2, obtained by the partial oxidation of glycol. It is a double aldehyde, between glycol and oxalic acid.

1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.