Having to do with, consisting of, or derived from mesenchyme which is that part of the mesoderm consisting of cells set in a gelatinous matrix.

A reference to the interaction between the mesenchymal and epithelial components (tissue that forms a thin protective layer on exposed bodily surfaces and forms the lining of internal cavities, ducts, and organs) in the development of the pancreas, skin, liver, salivary glands, lungs, and other bodily organs.