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Noun: romaine lettuce
  1. Lettuce with long dark-green spoon-shaped leaves
    - cos lettuce, Lactuca sativa longifolia
  2. Lettuce with long dark-green leaves in a loosely packed elongated head
    - cos, cos lettuce, romaine

Derived forms: romaine lettuces

Type of: lettuce

Part of: genus Lactuca, Lactuca

Encyclopedia: Romaine lettuce