[fas-it] 
noun, verb, -et⋅ed, -et⋅ing or (especially British
) -et⋅ted, -et⋅ting.| 1. | one of the small, polished plane surfaces of a cut gem. |
| 2. | a similar surface cut on a fragment of rock by the action of water, windblown sand, etc. |
| 3. | aspect; phase: They carefully examined every facet of the argument. |
| 4. | Architecture. any of the faces of a column cut in a polygonal form. |
| 5. | Zoology. one of the corneal lenses of a compound arthropod eye. |
| 6. | Anatomy. a small, smooth, flat area on a hard surface, esp. on a bone. |
| 7. | Dentistry. a small, highly burnished area, usually on the enamel surface of a tooth, produced by abrasion between opposing teeth in chewing. |
| 8. | to cut facets on. |
facet fac·et (fās'ĭt)
n.
A small smooth area on a bone or other firm structure.
A worn spot on a tooth, produced by chewing or grinding.