English word thioformaldehyde comes from English formaldehyde, English thio-
| Dictionary entry | Language | Definition |
|---|---|---|
| formaldehyde | English (eng) | (organic compound) The simplest aldehyde, H-CHO, a colourless gas that has many industrial applications; it dissolves in water to give formol (10%) and formalin. |
| thio- | English (eng) | (chemistry) containing sulfur / sulphur, especially a compound in which oxygen has been replaced by this element. |
| thioformaldehyde | English (eng) | (organic chemistry, in plural) Any oligomer of this compound.. (organic compound, uncountable) The simplest thioaldehyde H-CHS. |