A stud mare, a female horse used for breeding.

plural of brood sow

plural of brood cocoon

(biology, arachnology) A cocoon-like structure made of web in which a female spider lays her eggs.

(ornithology) Practicing brood parasitism.

(ornithology) The practice of laying eggs in the nest of another species (the host species) and allowing the host birds to rear the young, as practised by cowbirds, honeyguides, and most species of cuckoo.

A chamber, typically underground, in which young (animals or insects) are born and raised until old enough to venture outside

One of 15 broods of periodical cicadas that appear regularly throughout the eastern United States.

A patch of featherless skin that is visible on the underside of birds during the nesting season, helping them to transfer heat to their eggs when incubating.

plural of brood patch