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Definition of ruggedness noun from the Oxford Advanced Learner's Dictionary

ruggedness

noun
 
/ˈrʌɡɪdnəs/
 
/ˈrʌɡɪdnəs/
[uncountable]
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  1. the quality in landscape of not being level or smooth or of having rocks rather than plants or trees
    • the ruggedness of the Cumbrian landscape
  2. (approving) the quality in a man of having strong, attractive features
    • his manly ruggedness
  3. the quality in equipment or clothing of being strong and designed to be used in difficult conditions
    • the aircraft's ruggedness and reliability
halfway
adverb
 
 
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