 actinoid |
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| 1. | [ noun ] (chemistry) any of a series of radioactive elements with atomic numbers 89 through 103 | |
| Synonyms: | actinon actinide | |
| Related terms: | group chemical_element | |
| 2. | [ adjective ] having a radial form | |
| Examples: | "starfish are actinoid--that is, they are radially symmetrical" |
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| Related terms: | actinomorphic | |
| Similar spelling: |
actin actinide Actinidia actinopod Actinopoda actinon acetanilid acetanilide actinomycin Actinomeris acetonic actinian Actinozoa Actinaria acting action acting_out actinolite actinozoan acetamide actinic Actinia actinal acetone actinometer actinometry actinomyces actinium actinism |
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