What is another word for ground substance?
Pronunciation: [ɡɹˈa͡ʊnd sˈʌbstəns] (IPA) 
Ground substance is an important term used in anatomy and histology that describes the material that fills the space between cells and fibers in connective tissues. This substance consists of various organic and inorganic components, including glycosaminoglycans, proteoglycans, and water. There are several synonyms for the term ground substance, which can be useful for students and researchers working in these fields. These synonyms include extracellular matrix, interstitial fluid, mucin, and ground matrix. While these terms are not always interchangeable, they all refer to the same basic concept of the material that supports and surrounds cells and tissues in the body.
