Enteric

Definition

Relating to, occurring within, or associated with the intestine or alimentary canal. In arthropods, describes the midgut and hindgut regions where digestion, nutrient absorption, and water reclamation occur, as well as the specialized enteric microbiota that colonize these compartments. Contrasts with gastric (stomach-focused) or broadly gastrointestinal (entire digestive tract).

Etymology

From Greek enteron, intestine

Example

Enteric bacteria such as species of Enterobacteriaceae establish mutualistic or commensal relationships within the hindgut of termites and cockroaches, contributing to cellulose digestion and nitrogen fixation.

Synonyms

• intestinal

Related Terms

• alimentary canal
• Midgut
• Hindgut
• gastric
• gastrointestinal
• enteric microbiota
• peritrophic matrix
• Malpighian tubules

Usage Notes

More specific than gastrointestinal, which encompasses the entire digestive tract from foregut to anus; enteric specifically denotes intestinal involvement. In entomology, often used to distinguish gut regions (enteric versus gastric) or to describe pathogens and symbionts restricted to intestinal habitats (e.g., enteric bacteria versus transient gut visitors). The term appears frequently in medical/veterinary entomology when discussing vector-borne enteric pathogens (Salmonella, Shigella) transmitted by filth flies and cockroaches.