Definition of tensors:
(n) :
(mathematics, linear algebra, physics) A mathematical object that describes linear relations on scalars, vectors, matrices and other algebraic objects, and is represented as a multidimensional array.
(n) :
(engineering, computing) A multidimensional array with (at least) two dimensions.
(n) :
(anatomy) A muscle that tightens or stretches a part, or renders it tense.
(v) :
To compute the tensor product of two tensors or algebraic structures.
(n) :
(mathematics, obsolete) A norm operation on the quaternion algebra.