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plane section

plane section

7.0
A flat shape made when a flat surface cuts through a solid object
  • noun
  • /pleɪn ˈsɛkʃən/
  • Specialized
translation icon : sección plana
  • In the geometry class, we learned how to calculate the area of a plane section created by slicing a cone.

Examples

  • The engineer showed us a model with a plane section cut through the middle, revealing the internal structure.

  • The architect presented a drawing that included a plane section of the building to illustrate its design.

  • So and this little sliver is a plane section of the region in question.

  • For beams, we would say plane sections initially normal to the mid surface remain plane sections during the response history.

Synonyms

section
vsplane section
  • Specialized
19 5.5

The shape made when a flat cut passes through a solid object

is the specific geometric term for that planar cut
cross-section
vsplane section
  • Specialized
5.3

Showing the inside shape you see when you cut something across, like a tree trunk

applies to plane cuts at any angle rather than only perpendicular ones

Surface Forms

plane section singular

Morphology

plane + section

The meaning is directly and compositionally derived from 'plane' (a flat surface) plus 'section' (an area produced by slicing); together they denote the area produced when a plane cuts a solid. This follows ordinary English noun-noun composition and would be understandable to a B1 learner who knows both constituent words.

Etymology

Plane section comes from the image of a flat surface cutting through a solid object. If a flat surface (a plane) cuts the object, the shape left on the cut is the section, so the phrase means the 'area' or 'slice' made by that cut.