Pronunciation: (su-pôr'tiv, -pōr'-), [key]
1. giving support.
2. providing sympathy or encouragement: His family was supportive of his attempts to be a writer.
3. providing additional help, information, etc.; auxiliary: manufacturers of supportive materials.
4. Med.helping to maintain a normal physiological balance, as by the intravenous administration of required nutriment.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.