A kind of equal-area map projection, intended as an alternative to the Bonne projection that would reduce the extent of extreme distortion at the edges and give a more satisfying overall shape.

A pseudoconic cordiform equal-area map projection that is a limiting form of the Bonne projection, having its standard parallel at one of the poles (90°N/S).

A two-dimensional representation of a three-dimensional organic molecule by projection, used mainly in organic chemistry and biochemistry.

plural of Fischer projection

(linear algebra) A transformation matrix whose associated transformation is a projection.

plural of projection matrix

(projective geometry, complex analysis, cartography) A function that maps a sphere onto a plane; especially, the map generated by projecting each point of the sphere from the sphere's (designated) north pole to a point on the plane tangent to the south pole.

plural of stereographic projection

Synonym of back projection

(uncountable, parapsychology) The ability to deliberately detach one's mind, or a ghost-like replica of one's body (one's astral body), from one's physical body and to send it to distant places or into alternate realities or into people's dreams.