Skunkpharm to the rescue.

The authority states;

"Butane Honey Oil, or BHO, is the essential oil from the cannabis plant, extracted using n-Butane as a solvent. If it is extracted from fresh material, it is a Concrete, and if from cured material, it is an Oleoresin. A concrete or an oleoresin that has been winterized to remove the waxes, lipids, and fats, is known as an Absolute."

Argue less, read more.

Aloha,
Weeze