Which term refers to the knucklebone dice used in games?

The term that refers to the knucklebone dice used in games is "tali." In ancient Rome, tali were commonly made from the bones of animals and served as rudimentary dice for play, much like modern dice are used in various games today. The shape of tali is reminiscent of the bones of the ankle, contributing to their name, which is derived from the Latin word for "ankle" (talus).

These knucklebone dice played a significant role in Roman gaming culture, reflecting the importance of games and leisure activities in their society. Games involving tali were popular among various classes, serving as both entertainment and a means of social interaction.

While the other terms refer to different aspects of Roman gaming or culture, they do not describe knucklebone dice specifically. "Missus" relates to a variety of meanings including a messenger or sent one, "fritillus" refers to a cylindrical box for throwing dice, and "spina" typically denotes the center barrier in a chariot racing track. Thus, tali is the precise term for the knucklebone dice used in games.