Horizontally

• (adv.) In a horizontal direction or position; on a level; as, moving horizontally.
Found on http://thinkexist.com/dictionary/meaning/horizontally/

horizontally

adverb in a horizontal direction; `a gallery quite often is added to make use of space vertically as well as horizontally`
Found on https://www.encyclo.co.uk/local/20974

Horizontally

Hor`i·zon'tal·ly adverb In a horizontal direction or position; on a level; as, moving horizontally .
Found on http://www.encyclo.co.uk/webster/H/61

horizontally

[adv] - in a horizontal direction
Found on http://www.webdictionary.co.uk/definition.php?query=horizontally
No exact match found