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