cost·mary /ˈkɔstˌmɛri, ˈkɑst-/
  艾菊
  Cost·ma·ry n.  Bot. A garden plant (Chrysanthemum Balsamita) having a strong balsamic smell, and nearly allied to tansy. It is used as a pot herb and salad plant and in flavoring ale and beer. Called also alecost.
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  costmary
       n 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 [syn: 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