Word Meanings - INDICATRIX - Book Publishers vocabulary database

A certain conic section supposed to be drawn in the tangent plane to any surface, and used to determine the accidents of curvature of the surface at the point of contact. The curve is similar to the intersection of the surface with a parallel to the tangent plane and indefinitely near it. It is an ellipse when the curvature is synclastic, and an hyperbola when the curvature is anticlastic.

• Planetoid
  A body resembling a planet; an asteroid.
• Pointingstock
  An object of ridicule or scorn; a laughingstock.
• Similary
  Similar.
• Surfaced
  of Surface
• PLANETICPLANETICAL
  Of or pertaining to planets. Sir T. Browne.
• Ellipses
  of Ellipsis
• Parallelogrammic
  Alt. of Parallelogrammical
• Planetoidal
  Pertaining to a planetoid.
• Pointless
  Having no point; blunt; wanting keenness; obtuse; as, a pointless sword; a pointless remark.
• Supposable
  Capable of being supposed, or imagined to exist; as, that is not a supposable case.
• Surfacer
  A form of machine for dressing the surface of wood, metal, stone, etc.
• PLANETREE
  Same as 1st Plane.
• Contaction
  Act of touching.
• Hyperbola
  A curve formed by a section of a cone, when the cutting plane makes a greater angle with the base than the side of the cone makes. It is a plane curve such that the difference of the distances from any point of it to two fixed points, called foci,
• Parallelogrammical
  Having the properties of a parallelogram.
• Plane tree
  Same as 1st Plane.
• Pointlessly
  Without point.
• Supposal
  The act of supposing; also, that which is supposed; supposition; opinion.
• Synclastic
  Curved toward the same side in all directions; -- said of surfaces which in all directions around any point bend away from a tangent plane toward the same side, as the surface of a sphere; -- opposed to anticlastic.

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