Term Name:	acidocalcisome
Synonyms:	metachromatic granule, polyphosphate vacuole, volutin granule
Definition:	An electron-dense acidic membrane-bounded organelle which contains a matrix of pyrophosphate and polyphosphates with bound calcium and other cations.
Ontology:	GO: Cellular Component [GO:0020022]    QuickGO    AmiGO