head lettuce(n = noun.plant) lactuca sativa capitata - distinguished by leaves arranged in a dense rosette that develop into a compact ball; Array
is a kind of lettuce
has parts: butterhead lettuce, crisphead lettuce, iceberg, iceberg lettuce
is a member of genus lactuca, lactuca

acid head, ax head, axe head, bibb lettuce, bonnet head, boston lettuce, butterhead lettuce, club head, common lettuce, cos lettuce, cow's head, crisphead lettuce, crowned head, cylinder head, death's head, department head, dragon's head, false dragon head, flower head, frog's lettuce, from head to toe, garden lettuce, golf-club head, hash head, head, head ache, head and shoulders above, head blight, head cabbage, head cabbage plant, head cold, head count, head covering, head crash, head for the hills, head game, head gasket, head gate, head gear, head home, head honcho, head hunter, head lice, head linesman, head louse, head nurse, head of hair, head of household, head of state, head off, head over heels, head over heels in, head register, head restraint, head rhyme, head sea, head shop, head smut, head start, head teacher, head tone, head trip, head up, head voice, head wind, head word, heels over head, hit the nail on the head, human head, hydrostatic head, iceberg lettuce, in the head, indian lettuce, lamb's lettuce, leaf lettuce, lettuce, level head, loose-leaf lettuce, magnetic head, malheur wire lettuce, medusa's head, meet head on, miner's lettuce, nominal head, pill head, pitot head, pope's head, prickly lettuce, pudding head, pumpkin head, read/write head, romaine lettuce, rotor head, running head, sea lettuce, snake's head fritillary, spread head, stagger head, staggered head, stem lettuce, swelled head, talking head, torsion head, trail head, turk's head, water lettuce, white lettuce