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Definition of abyssal adjective from the Oxford Advanced Learner's Dictionary

abyssal

adjective
 
/əˈbɪsl/
 
/əˈbɪsl/
(specialist)
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  1. relating to the bottom of the ocean, especially to depths of between 3 000 and 6 000 metres
    Oxford Collocations DictionaryAbyssal is used with these nouns:
    • depth
    See full entry
    Word Originmid 17th cent.: from late Latin abyssalis ‘belonging to an abyss’ from Greek abussos ‘bottomless’, from a- ‘without’ + bussos ‘depth’.
See abyssal in the Oxford Advanced American Dictionary
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noun
 
 
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