| A | B |
|---|
| Apatite | crystalline mineral component of bones and teeth, that contain calcium and phosphate |
| Matrix | intercellular or intermicrobial substance of a tissue, or the tissue from which a structure develops, gains support, and is held together |
| Pyrophosphate | inhibitor of calcification that occurs in parotid saliva of humans in variable amounts |
| Germfree | free of microorganisms |
| Amorphous | without a definite shape or visible differentiation in structure |
| Chromogenic | producing color or pigment |
| Endogenous | produced within or caused by factors within |
| Hypoplasia | incomplete development or underdevelopment of an organ or a tissue |
| Exogenous | originating outside or caused by factors outside |
| Chlorophyll | green plant pigment essential to photsynthesis |
