Definition of 'costmary'

Noun

1. tansy-scented Eurasian perennial herb with buttonlike yellow flowers; used as potherb or salad green and sometimes for potpourri or tea or flavoring; sometimes placed in genus Chrysanthemum
      Synonyms: alecost bible leaf mint geranium balsam herb Tanacetum balsamita Chrysanthemum balsamita
2. leaves used sparingly (because of bitter overtones) in sauces and soups and stuffings

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