inoculate, inoculating, inoculated 1. To communicate a disease by inoculation. 2. To bud; to insert, or graft, as the bud of a tree or plant in another tree or plant. 3. To insert a foreign bud into; as, to inoculate a tree. 4. To communicate a disease to (a person) by inserting infectious matter in the skin or flesh; such as, to inoculate a per... Found on http://www.wordinfo.info/words/index/info/view_unit/1444/2