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An ellipsoid drawn for atomic displacement.
Also known as: ORTEP ellipsoid, Anisotropic displacement drawing
The graphical convention drawing an atom as an ellipsoid whose shape shows the extent and direction of its thermal motion.
Draws an atom as an ellipsoid whose shape shows the extent and direction of its thermal motion.
Contexts: Laboratory
Is drawn at a stated probability, usually fifty per cent, so an ellipsoid's size is a choice of the person drawing it and not a measured dimension.
Contexts: Laboratory
A solid oval or egg shape drawn in place of an atom, its curve stretched along the directions in which the atom moves most.