Section 18(2) operated only to expand the definition contained in section 18(1) not to alter it.

He has since learned that in meetings, judges fight to expand the definition of a group to make it big enough so that their placements are not an aberration.

I agree with this response but feel it's important to expand the definition.

Using this we can expand the definition of each constructible set.

Some researchers expand the definition of visions to include a strongly felt presence.