secondary or subordinate branch or root.

Merriam-Webster Online Dictionary
lateral (adjective)
1.
of or relating to the side
2.
situated on, directed toward, or coming from the side
3.
extending from side to side - the lateral axis of an airplane
4.
produced with passage of breath around the side of a constriction formed with the tongue - \l\ is lateral
lateral (noun)
1.
a branch from the main part (as in an irrigation or electrical system)
2.
a pass in football thrown parallel to the line of scrimmage or in a direction away from the opponent's goal
3.
a lateral speech sound
lateral (verb)
intransitive verb
to throw a lateral
lateral (Wikipedia)

Lateral is a geometric term of location which may refer to:

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