Definitions

1. noun

In invertebrate animals, the body cavity or the space within the body of an animal that is not part of any of its organs.

“In insects, the haemocoel serves as a transport system for nutrients and waste products.”

2. noun

A cavity or space within a plant that contains sap or other fluids.

“The haemocoel of a tree transports water and nutrients from the roots to the leaves.”