<p><strong>Adjective:</strong></p><ul><li>conferring a faculty, privilege, permission, or the power of doing or not doing something</li><li>left to one's option or choice; optional</li><li>may or may not take place; may or may not assume a specified character</li><li>Biology: having the capacity to live under more than one specific set of environmental conditions, as a plant that can lead either a parasitic or a nonparasitic life or a bacterium that can live with or without air</li><li>of or relating to the faculties</li></ul>