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Related to longitudinal section: oblique section
longitudinal section[‚län·jə′tüd·ən·əl ′sek·shən]
(science and technology)
A section taken through the lengthwise dimension of a structure, organism, or other object.
An orthographic projection of a section made by cutting through the longest axis of an object.See also: Projection drawing
In graphic representation, a section, 1 taken along the longest axis.