| Term | Definition |
| lithograph | picture drawn on stone so the stone can "draw a picture" |
| monolith | lone stone |
| megalith | large stone |
| lithology | study of rocks or stone |
| lithosphere | the rocky crust of the earth |
| lithic | made of or pertaining to stone |
| eolithic | earliest stone age |
| paleolithic | ancient stone age after the eolithic period |
| neolithic | new or late stone age |
| petrified | made into stone |
| petrifaction | process of making into stone |
| Peter | name with mean "reliable, like a rock" |
| petroleum | oil from rocks |
| petroglyph | rock carving |
| petrography | writing about rocks |
| petrous | hard, stone-like, rocky |