Strain

Strain may refer to:

==Science and technology== Strain (biology), variants of biological organisms Strain (chemistry), a chemical stress of a molecule Strain (general relativity), measure of spacetime stretching in linearized gravity Strain (injury), an injury to a muscle Strain (mechanics), a measure of deformation Filtration, separating fluids from solids by passing through a filter Percolation, of fluids through porous materials Psychological stress