ˈled.ə̇s, -etə̇s noun
( -s )
Etymology: Middle English letuse, from Old French laitues, plural of laitue, from Latin lactuca, from lact-, lac milk; from its milky juice — more at galaxy
1.
a. : a plant of the genus Lactuca ; specifically : a common garden vegetable ( L. sativa ) the succulent leaves of which are used especially in salads — see cos lettuce , head lettuce , leaf lettuce
b. : any of several plants (as members of the genera Claytonia and Valerianella ) having succulent foliage
2. slang : greenbacks