Definitions

1. noun

a cavity in an animal that is used for digestion, especially in arthropods, or the digestive tract of an arthropod

“The arthropod’s enteron was a complex network of tubes and organs.”

2. noun

a cavity in a plant that is used for digestion, especially in seed plants, or the digestive tract of a seed plant

“The enteron of the seed plant is where the nutrients are broken down.”