regula

noun

reg·​u·​la

ˈregyələ

plural regulae

-ˌlē

1

: an architectural band or fillet especially when one of a series beneath the taenia in a Doric architrave of which each corresponds to a triglyph above and has a row of six guttae on its lower side

2

: rule

the authoritative regula for community life

Word History

Etymology

Latin regula straightedge, rule

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