daughter sporocyst:
a larval stage of Digenea produced by a mother sporocyst; it lacks a gut and is capable of asexual production of either rediae or cercariae.
daughter redia:
a larval stage of Digenea produced by a mother redia; it possesses a gut and produces cercariae asexually.
definitive host:
a host in which the adult stage of a parasite lives.
deirid:
specialized cervical papilla.
dendritic:
highly branched.
dermatitis:
inflammation of the skin.
diagonal:
one located anterior and to the side of another.
dioecious:
possessing separate sexes.
diplostomulum:
a type of metacercaria in some Strigeiformes characterized by an oval shape with anterolateral pseudosuckers, living unencysted in host tissue.
direct life cycle:
a life cycle involving only one host.
diverticulate:
taking the form of a branching pattern.
diverticulum:
a lateral, often branched, offshoot of part of the digestive system; often present in large numbers.