English

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Etymology

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From horizontal +‎ -ly.

Adverb

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horizontally (comparative more horizontally, superlative most horizontally)

  1. In a horizontal direction or position.
    Japanese can be written horizontally as well as vertically.
    • 2015 July 4, Jiangtao Guo et al., “Horizontal gene transfer in an acid mine drainage microbial community”, in BMC Genomics[1], volume 16, →DOI:
      Moreover, recent research showed that the amount of genetic material that can be moved horizontally may include small gene fragments, entire operons, superoperons that encode complex biochemical pathways, and whole chromosomes [ 54 ].
  2. In a horizontal manner (any sense).
    an organism transmitted horizontally

Antonyms

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Derived terms

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Translations

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