regula

[reg-yuh-luh]
noun, plural reg·u·lae [reg-yuh-lee] /ˈrɛg yəˌli/.
  1. (in a Doric entablature) a fillet, continuing a triglyph beneath the taenia, from which guttae are suspended.

Origin of regula

1555–65; < Latin rēgula ruler, pattern (akin to rēx king, regere to rule; see -ule)
Also called guttae band.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for regulae

Historical Examples of regulae