In the case of animals with extracellular luminescence we may speak of luminous secretions and true luminous glands.
extracellular (or Soluble) Toxins: those which are diffused into, and held in solution by, the surrounding medium.
Such toxins being set free in the culture medium are often known as extracellular.
They may take a smear, and they find that—intra and extracellular diplococci, they treat the patient for gonorrhea.
extracellular iodin-staining granules, which are present normally, are more numerous in iodophilia.
extracellular ex·tra·cel·lu·lar (ěk'strə-sěl'yə-lər)
Located or occurring outside a cell or cells.