| There are usually no holes all the way through but lots of protuberances and concavities. |
| The shape of Taormina is a geometry of interlocking and contrapuntal curves and concavities with various centres and focal points. |
| Fine diamond burs and silicone points are best suited to smooth out concavities and uneven surfaces. |
| In time, they would develop concavities, and would require laborious grinding to put them back into shape. |
| These are broad concavities in the ambitus that could be considered precursors to the ambulacral notches of certain mellitids. |
| Oskar had nothing but his fists with which to fill the two concavities. |
