actinoid
英[\'æktɪnɔɪd]
美[\'æktənɔɪd]
基本释义
- adj.
- 放射线状的
实用例句
Starfish are actinoid -- that is, they are radially symmetrical.
海星呈放射性形状 —— 那就是说, 它们是呈对称的放射状.
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英英释义
Noun
1. any of a series of radioactive elements with atomic numbers 89 through 103
Adjective
1. having a radial form;
"starfish are actinoid--that is, they are radially symmetrical"