Meaning ofhorizontalin English

Adjective

1. parallel to the horizon; level
2. level or flat in position
   The picture was hung in a horizontal position on the wall.
3. transmission between non-related organisms
   Horizontal gene transfer occurs between different species.
4. having a side-by-side arrangement
   The horizontal layout of the keyboard allows for efficient typing.
5. of notes sounding one after another; successive
   The musical composition featured horizontal chords sounding simultaneously.
6. comparing wines from different wineries (same vintage)
   The wine tasting event featured a horizontal comparison of merlots from various vineyards.
7. comparing wines of the same vintage
   The sommelier led a horizontal tasting of cabernets from the same year.