A secondary purpose of the keel is to provide ballast.

At least she was providing good ballast for her partner.

Plain steamed rice provides ballast, and you need nothing more.

As for the peculiar internal structure of the siphuncle, beyond providing ballast, no reason has been given.

They delivered, providing ballast to a gigantic entity that had seemed in danger of tipping over.

If you're despairing about the country's politics, this volume will provide intellectual ballast to your feelings.

Javier has no family to provide ballast; he is, pointedly, an orphan and unmarried.

Similarly, his commercial beginnings may also have provided special ballast.

"Alternatives not only provide ballast, but another source of power."

More important, people were needed in the hold to provide ballast - too much weight up top and the boat would tip.