- (of a line, pole, etc.) going straight up or down from a level surface or from top to bottom in a picture, etc.
- the vertical axis of the graph
- The cliff was almost vertical.
- There was a vertical drop to the ocean.
- having a structure in which there are top, middle and bottom levels
- a vertical flow of communication
- (medical) passed from one generation to the next
- 4% of these infections result from vertical transmission from mother to baby.
Word Originmid 16th cent. (in the sense ‘directly overhead’): from French, or from late Latin verticalis, from vertex ‘whirlpool, crown of a head, vertex’, from vertere ‘to turn’.
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vertical