A rotula is a roll consisting of a long and narrow strip of writing material wound around a wooden axle or rod and written on its interior side.
Rotula is also the name of several genera of plants and animals:
- Rotula (plant), a genus of plants in the family Boraginaceae
- Rotula (echinoderm), a genus of echinoderms in the family Rotulidae
- Rotula, see List of prehistoric echinoderm genera
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