| 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 | of or associated with an archbishop |
| arc | the ninth sign of the zodiac |
| arc | (astrology) a person who is born while the sun is in Sagittarius |
| arc | a person who is expert in the use of a bow and arrow |
| arc | any of several small freshwater fishes that catch insects by squirting water at them and knocking them into the water |
| arc | the sport of shooting arrows with a bow |
| arc | a national park in Utah including mountains and the Colorado River gorge and huge rock formations caused by erosion |
| arc | primitive cell or group of cells from which a mother cell develops |
| arc | (botany) of or relating to the cells in a sporangium that give rise to spores |