An experiment has shown that, as many owners suspect, puppies seem to extend the definition of 'pack' to include human companions.

In fact, we may extend the definition further with choices of adjoint other than transpose or conjugate transpose.

To construct still larger ordinals, we can extend the definition of by throwing in more ways of constructing uncountable ordinals.

Other pressure groups began to extend the definition from state managed health care to any form of state finance in health care.

For database purposes, we extend the definition to include the possibility of operons with only one gene.