Definitions for "Mitochondrion"
an organelle within a cell that generates most of the cell's energy. Its DNA also maintains and expresses genetic information. [Source: NHBLI/NCBI Glossary
a double-membrane bounded organelle that plays a central role in production of ATP; known as the powerhouse of the cell
Organelle found in all eukaryotes. Site of respiration (ATP synthesis). Contains its own DNA.