abdominalia
n. C2 Proficiency ab·dom·i·na·lia
n. the front part of an animal's body, especially in insects and spiders. It is the area where the stomach and other organs are located.
n. the anterior or ventral portion of the body in arthropods, containing the digestive and reproductive organs. Often used in taxonomic descriptions to distinguish different body segments.
The spider's abdominalia is covered in fine hairs.
In many insects, the abdominalia is segmented and contains the heart and reproductive system.
The fossilized remains of the ancient arthropod show a distinct separation between the thorax and the abdominalia, suggesting a complex internal structure for its time.
From Latin.