20; twenty; XX. Hypernyms (XX is a kind of...): large integer (an integer equal to or greater than ten)
Brood (verb). the young birds hatched at one time; a hatch; as, a brood of chickens. Brood (verb). the young from the same dam, whether produced at the same time or not; young children of the same mother, especially if nearly of the same age; offspring; progeny; as, a woman with a brood of children. Brood (verb).
As a consequence of this, they develop one or several patches of bare skin on the ventral surface. These reddish, well-vascularized areas of skin are usually called brood patches, and improve heat transfer to the eggs. Broodiness is usually associated with female birds, although males of some bird species become broody and some non-avian animals also show broodiness.