As adjectives the difference between ectatic and extatic
is that ectatic is (medical) of or relating to ectasia while extatic is .
ectatic
English
Adjective
(-)
(medical) Of or relating to ectasia.
References
Webster's Third New International Dictionary, Unabridged . Merriam-Webster, 2002. http://unabridged.merriam-webster.com
unabridged.merriam-webster.com (19 Dec 2012)