Dictionary

vertical

adjective ver·ti·cal \ˈvər-ti-kəl\

: positioned up and down rather than from side to side : going straight up

: having a structure in which there are top, middle, and bottom levels

Full Definition of VERTICAL

1
a :  situated at the highest point :  directly overhead or in the zenith
b of an aerial photograph :  taken with the camera pointing straight down or nearly so
2
a :  perpendicular to the plane of the horizon or to a primary axis :  upright
b (1) :  located at right angles to the plane of a supporting surface
(2) :  lying in the direction of an axis :  lengthwise
3
a :  relating to, involving, or integrating economic activity from basic production to point of sale <a vertical monopoly>
b :  of, relating to, or comprising persons of different status <the vertical arrangement of society>
vertical noun
ver·ti·cal·i·ty \ˌvər-tə-ˈka-lə-tē\ noun
ver·ti·cal·ly \ˈvər-ti-k(ə-)lē\ adverb
ver·ti·cal·ness \-kəl-nəs\ noun
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Examples of VERTICAL

  1. a shirt with vertical stripes
  2. the vertical axis of a graph

Origin of VERTICAL

Middle French or Late Latin; Middle French, from Late Latin verticalis, from Latin vertic-, vertex
First Known Use: 1559

Synonym Discussion of VERTICAL

vertical, perpendicular, plumb mean being at right angles to a base line. vertical suggests a line or direction rising straight upward toward a zenith <the side of the cliff is almost vertical>. perpendicular may stress the straightness of a line making a right angle with any other line, not necessarily a horizontal one <the parallel bars are perpendicular to the support posts>. plumb stresses an exact verticality determined (as with a plumb line) by earth's gravity <make sure that the wall is plumb>.
VERTICAL Defined for Kids

1vertical

adjective ver·ti·cal \ˈvər-ti-kəl\

Definition of VERTICAL for Kids

:  rising straight up and down from a level surface
ver·ti·cal·ly adverb

2vertical

noun

Definition of VERTICAL for Kids

:  something (as a line or plane) that rises straight up and down
Medical Dictionary

vertical

adjective ver·ti·cal \ˈvərt-i-kəl\

Medical Definition of VERTICAL

:  relating to or being transmission (as of a disease) by genetic inheritance or by a congenital or perinatal route <vertical transmission of the hepatitis B virus from mother to infant>—compare horizontal 2
ver·ti·cal·ly \ˈvərt-i-k(ə-)lē\ adverb
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