| arc | related to or dealing with or devoted to archaeology |
|---|---|
| arc | related to or dealing with or devoted to archaeology |
| arc | an anthropologist who studies prehistoric people and their culture |
| arc | the branch of anthropology that studies prehistoric people and their cultures |
| arc | extinct primitive toothed bird of the Upper Jurassic having a long feathered tail and hollow bones |
| arc | extinct primitive toothed bird of the Upper Jurassic having a long feathered tail and hollow bones |
| arc | extinct primitive toothed bird with a long feathered tail and three free clawed digits on each wing |
| arc | primitive reptile-like fossil birds of the Jurassic or early Cretaceous |
| arc | the time prior to 2,500 million years ago |
| arc | (geology) formed in the earlier of two divisions of the Precambrian era |
| arc | the time prior to 2,500 million years ago |
| arc | little evolved from or characteristic of an earlier ancestral type |