interstitial cell; stromal cell
Technical term in anatomy for cells found in the connective tissue between other structures, such as in the testes or ovaries.
Interstitial cells are located in the interstitium of the testes and secrete testosterone.
Compound of 間質 (interstitium) + 細胞 (cell). The exact historical derivation is uncertain; the spelling is conventionally associated with the anatomical meaning.