Common terms in herbalism

Infused Oil: An oil into which qualities of an herb have been transferred by infusion over a length of time from hours to several weeks, sometimes by applying heat.

Maceration: Maceration means chopping or grinding the herb, putting it in a jar and covering with a solvent (usually a combination of alcohol and water). Let it sit for a month, then strain it out. The liquid leftover is the tincture, having extracted the active constituents of the plant.

Mucilage: A thick, gluey substance produced by nearly all plants, mucilaginous herbs tend to be demulcent.

Nervine: Herbs that specifically benefit the nervous system. Actions can vary: Some stimulate, some relax, some tone and strengthen.

Poultice: A soft, moist, mass of plant material applied topically to sores. The poulticed herbs are held in place with a cloth, leaf, bandage, or other suitable material.