Definitions

1. noun

A genus of daisy-like flowering plants in the sunflower family, especially the common feverfew (Tanacetum parthenium).

“The doctor recommended the patient take a tincture of Tanacetum parthenium to alleviate her migraines.”

2. noun

A plant of the genus Tanacetum.

“She planted a patch of Tanacetum in her garden to attract bees and butterflies.”