| Term | perikyma |
| Pronunciation | pair-ih-KIY-muh |
| Plural | perikymata(pair-ih-KIY-muh-tuh) |
| Variations | striae of Retzius |
| See also | peri-, imbrication lines, striation |
| Definition | Small pits on the surface of a tooth surrounding the enamel prisms. Perikymata appear as a series of incremental growth lines in youthful teeth, most easily noticeable in canines, and become less noticeable over time due to the wear of the enamel surface. |
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