romaine lettuce

Noun romaine lettuce has 2 senses

• romaine lettuce(n = noun.plant) cos lettuce, lactuca sativa longifolia - lettuce with long dark-green spoon-shaped leaves;
is a member of genus lactuca, lactuca
is a kind of lettuce

• romaine lettuce(n = noun.food) cos, cos lettuce, romaine - lettuce with long dark-green leaves in a loosely packed elongated head;
is a kind of lettuce