invisible

Non-observable, intangible, immaterial as opposed to observable, visible and material.

Created by Dale Pond. Last Modification: Saturday 21 of May, 2011 04:31:51 MDT by Dale Pond. (Version 1)
The original document is available at https://pondscienceinstitute.on-rev.com/svpwiki/tiki-index.php?page=invisible