Matrix

An Illustrated Dictionary of Medicine, Biology and Allied Sciences · 1907 · p. 27

(ma'-triks). I. A mold; the cavity in which anything is formed. 2. That part or ti ue into which any organ or proce is set, as the matrix of a tooth or of. a nail; the intercellular substance. 3. In dentistry, a piece of steel or other metal of suitable form, used in filling proximal cavities. 4. The uterus.