1. Alisma small genus of aquatic or semiaquatic plants
  2. Alismatidae one of four subclasses or superorders of Monocotyledones
  3. Alismataceae perennial or annual aquatic or marsh plants
  4. Alismales an order of aquatic monocotyledonous herbaceous plants
  5. Alisma plantago-aquatica marsh plant having clusters of small white or pinkish flowers and broad pointed or rounded leaves
  6. Alistair Cooke United States journalist (born in England in 1908)