When a massage therapist or business refers to medical massage verses just massage therapy they are generally distinguishing between a deep tissue, injury treatment or sports massage verses a relaxation, swedish or spa massage. The intention of the massage is different.
Calico (in British usage since 1505[1]) is a plain-woven textile made from unbleached and often not fully processed cotton. It may contain unseparated husk parts, for example. The fabric is far less fine than muslin, but less coarse and thick than canvas or denim, but it is still very cheap owing to its unfinished and undyed appearance.
Precipitated Calcium Carbonate. Mississippi Lime precipitated calcium carbonate (CaCO3), commonly referred to as PCC, is a bright, high purity mineral. Precipitated calcium carbonate is one of the most versatile chemicals used in the modern paint/coatings, ink and paper making markets today.