(n.) = lettuce ; head of lettuce. Ex: Greenhouses are used widely in the Mediterranean basin for the production of out of season vegetables such as aubergine, bean, cucumber, lettuce, pepper and tomato. Ex: But because of their relatively short shelf life, heads of lettuce have to be shipped quickly so that they remain crisp and fresh. ---- * cogollo de lechuga = heart of lettuce. * lechuga orejona = romaine ; cos ; cos lettuce ; romaine lettuce. * lechuga romana = romaine ; cos ; cos lettuce ; romaine lettuce. * más fresco que una lechuga = as cool as a cucumber. * tan fresco como una lechuga = as cool as a cucumber.