Skir·ret n.  Bot. An umbelliferous plant (Sium Sisarum syn. Pimpinella Sisarum).  It is a native of Asia, but has been long cultivated in Europe for its edible clustered tuberous roots, which are very sweet.
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  Sium sisarum
       n : an Asiatic herb cultivated in Europe for its sweet edible
           tuberous root [syn: skirret]