ma'trix. 1

An old name for the uterus. 2. A ti ue or organ containing and determining the form or growth of another structure. 3. Intercellular substance when great in amount as compared with the cellular elements, m. of a hair. See hair follicle, under follicle, m. of a tooth. The homogeneous matter in a tooth which is impregnated with lime salts, m. of bone. A dense fibrous connective ti ue, yielding gelatin when boiled, and, when impregnated with salts, constitutes bone. See o ein. m. of cartilage. The ground substance of cartilage, m. of connective ti ue. Its intercellular substance, m. of hyaline cartilage. A homogeneous or finely granular substance in which the cells are imbedded. It yields chondrin on being boiled. m. of the nail. The corium which underlies the root of the nail. m. of the vertebrae. A membranous column of cells formed around the notochord from the inner part of the pro to vertebral column previous to the cartilaginous differentiation of the permanent vertebrae in the embryo, m. pill. See hair follicle, under follicle, m. unguis. See m. of the nail, membranous m. of the vertebrae. See m. of the vertebrae, neuroglia m. 1. The ground substance of the neuroglia. 2. The neuroglia, nuclear m. See cytochylema and achromatin. [Lat., mater, mother.]