|  cos lettuce 
 
 1. lettuce with long dark-green spoon-shaped leaves
 • Syn:
 romaine lettuce, Lactuca sativa longifolia
 • Hypernyms:
 lettuce
 • Member Holonyms:
 Lactuca, genus Lactuca
 2. lettuce with long dark-green leaves in a loosely packed elongated head
 • Syn:
 cos, romaine, romaine lettuce
 • Hypernyms:
 lettuce
 
 
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