rotula
noun
rot·u·la
| \ ˈrächələ\
plural rotulas\ -ləz \
or rotulae\ -ˌlē \
Definition of rotula
1
: patella sense 2a
2
: one of the five radial pieces intervening between the alveoli and extending inward toward the esophagus in the Aristotle's lantern of a sea urchin
3
: troche
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