noun
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
Useful english dictionary. 2012.