| alluvion | (noun) clay or silt or gravel carried by rushing streams and deposited where the stream slows down | Synonyms: alluvial deposit, alluvial sediment, alluvium |
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| (noun) the rising of a body of water and its overflowing onto normally dry land | Synonyms: deluge, flood, inundation |
| (noun) gradual formation of new land, by recession of the sea or deposit of sediment | - |
| avionic | (adjective) of or relating to avionics | - |
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| avionics | (noun) science and technology of electronic systems and devices for aeronautics and astronautics | - |
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| oblivion | (noun) total forgetfulness | Synonyms: obliviousness |
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| (noun) the state of being disregarded or forgotten | Synonyms: limbo |