| astatine |
a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
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| aster |
any of various chiefly fall-blooming herbs of the genus Aster with showy daisylike flowers star-shaped structure formed in the cytoplasm of a cell having fibers like rays that surround the centrosome during mitosis
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| astereognosis |
a loss of the ability to recognize objects by handling them
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| asterion |
the craniometric point at the junction of the lamboid suture and the occipitomastoid suture and the parietomastoid suture
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| Asteraceae |
Compositae: plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnia
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