a sample from the beginning of the dictionary:

- A -

ablution

The process of washing a solid with a liquid, usually in water. Spiritually and psychologically, it is facing one's emotions and letting feelings flow, so that innocence and purity can be restored.

Aion

(see Ouroboros)

Air

Air is one of the Four Elements of alchemy. Air in the alchemical sense carries the archetypal properties of spirit into the manifested world. It is associated with the operation of Separation and represented by the metal Iron.

alchemy

The word is derived from the Arabian phrase "al-kimia," which refers to the preparation of the Stone or Elixir by the Egyptians. The Arabic root "kimia" comes from the Coptic "khem" that alluded to the fertile black soil of the Nile delta. Esoterically and hieroglyphically, the word refers to the dark mystery of the primordial or First Matter (the Khem), the One Thing through which all creation manifests. Alchemy, then, is the Great Work of nature that perfects this chaotic matter, whether it be expressed as the metals, the cosmos, or the substance of our souls.

alembic

The upper part of a still; a still-head. The term is often used to refer to a complete still. (see cucurbute; Distillation)

alkahest

The alkahest is the power from Above that makes possible alchemical transformation. The word is usually translated as "universal solvent," which alludes to the ability of the alkahest to dissolve or reduce all physical matter to its basic essence. With metals, this meant transmuting them to their purest form, which was gold. In the human body, this meant the creation or revealing of a golden body of consciousness, the Astral Body.