| the offspring of a zebra and a donkey. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| travertine (trāv'ər-tēn', -tĭn) Pronunciation Key
A white, tan, or cream-colored form of limestone, often having a fibrous or concentric appearance. Travertine is formed through the rapid precipitation of calcium carbonate, especially at the mouth of a hot spring or in limestone caves, where it forms stalactites and stalagmites. It is similar to, but harder than, tufa. |