n. The act of deforming, or changing the form of; change of form.n. An altered form.n. Deformity; disfigurement.n. In geometry and mech., a change of shape of a body or surface without any breach of the continuity of its parts, and generally without any alteration of the size of them; relative displacement of parts; strain.n. In botany, any malformation or abnormal growth due to the attack of some parasite.n. In geology, the process whereby, under the influence of strains (usually compressive), individual strata, masses of rock, or larger portions of the earth's crust suffer change of form, as when massive rocks become schistose, flat strata are folded, or mountain-ranges are upheaved.