HyperDic is a hyper-dictionary based on WordNet 2.1. This version links 147,249 word forms.
| Dictionary | A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z |
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| Shopping | The largest selection of F LAYER products: USA, UK, Canada, Deutschland, France. |
| TV Shop | As seen on TV: beauty, diets, exercise, household, kitchen, personal, vitamins, and other popular TV-products. |
| Meaning | The highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmission. |
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| Synonyms | Appleton layer, F region |
| Part of | ionosphere |
| Instance of | region, part |
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