adj. That has both a digestive and a circulatory function
the GNU version of the Collaborative International Dictionary of English
adj. Having the structure, or performing the functions, both of digestive and circulatory organs.
The Century Dictionary and Cyclopedia
Common to or serving alike for the functions of digestion and circulation, as the body-cavity of some animals, or pertaining to the organs concerned in these processes.
Word Usage
"One of these digestive systems that are not so complicated is the gastrovascular cavities."