lengthwise

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Adjective lengthwise has 1 sense

lengthwise, lengthways - running or extending in the direction of the length of a thing; "the lengthwise dimension"
Antonyms: crosswise, cross, transverse, transversal, thwartwise, cross-section, cross-sectional

Adverbial lengthwise has 1 sense

lengthways, lengthwise, longwise, longways, longitudinally - in the direction of the length; "He cut the paper lengthwise"