Noun dahl has 2 senses

• dahl(n = noun.plant) cajan pea, cajanus cajan, catjang pea, dhal, pigeon pea, pigeon-pea plant, red gram - tropical woody herb with showy yellow flowers and flat pods; much cultivated in the tropics; Array
has parts: cajan pea, dahl, pigeon pea
is a member of cajanus, genus cajanus
is a kind of bush, shrub

• dahl(n = noun.food) cajan pea, pigeon pea - small highly nutritious seed of the tropical pigeon-pea plant; Array
is a kind of pea
is a part of cajan pea, cajanus cajan, catjang pea, dahl, dhal, pigeon pea, pigeon-pea plant, red gram