[tes-er-uh] 
[tes-uh-ree] . | 1. | one of the small pieces used in mosaic work. |
| 2. | a small square of bone, wood, or the like, used in ancient times as a token, tally, ticket, etc. |
| tes·ser·a (těs'ər-ə) n. pl. tes·ser·ae (těs'ə-rē') One of the small squares of stone or glass used in making mosaic patterns. [Latin, from Greek, neuter of tesseres, variant of tessares, four; see kwetwer- in Indo-European roots.] |
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