noun A muscle that tightens or stretches a part, or renders it tense. .mw-parser-output .defdate{font-size:smaller}
noun A mathematical object that describes linear relations on scalars, vectors, matrices and other algebraic objects, and is represented as a multidimensional array.
noun A multidimensional array with (at least) two dimensions.
noun A norm operation on the quaternion algebra.
verb To compute the tensor product of two tensors or algebraic structures.