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| 1. | [ noun ] (chemistry) a radioactive element of the actinide series; found in uranium ores | |
| Synonyms: | atomic_number_89 actinium | |
| Related terms: | chemical_element uranium_ore | |
| 2. | [ noun ] (physics,electricity) an electric current that reverses direction sinusoidally | |
| Synonyms: | alternating_current | |
| Examples: | "In the US most household current is AC at 60 cycles per second" |
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| Related terms: | direct_current electricity | |
| Similar spelling: |
Acy ace acc achy ache Acey ackee Achee accho |
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