(uncountable) Amateur fiction created by fans, incorporating the characters and concepts of a commercial media property, typically without permission from the author or owner.

The branch of mathematics dealing with the algebraic structure of fields. / (psychology) A theory which examines patterns of interaction between individuals and their environment.

A species of vole, Microtus agrestis.

A species of the sub-family Murinae (Old World rats and mice), Apodemus agrarius

Any fiber made by extruding a synthetic substance through spinnerets to make a thread.

plural of field vole

Alternative spelling of force field

(physics) A force field

(mathematics) a function mapping a subset of ℝⁿ into a subset of ℝⁿ / (differential geometry) a function which associates, to each point on a surface, a vector in the tangent plane of that point

(physics) A region of space (a vector field) in which a force operates; contains lines of force; a field of force. / (chemistry) A mathematical description of the potential energy of a system of atoms.