| Mesozoic (a.) Belonging, or relating, to the secondary or reptilian age, or the era between the Paleozoic and Cenozoic. See Chart of Geology. |
| Mesozoic (n.) The Mesozoic age or formation. |
| Mesozoic Mesozoic era Age of Reptiles | frommillion to million years ago |
| Mesozoic | of or relating to or denoting the Mesozoic era |