- A white, amorphous, insoluble material thought to be a polymeric number of chloral.
- A white, amorphous, insoluble substance considered a polymeric selection of chloral.
- A white tasteless solid human body, insoluble in water, formed whenever chloral is kept for some time in touch with strong sulphuric acid. It is a polymerid of chloral. This indicates to look like chloral hydrate with its pharmacodynamic properties.