As adjectives the difference between iridic and ridic
is that iridic is containing tetravalent iridium while ridic is alternative form of ridiculous.
iridic
English
Etymology 1
irid(ium) (Neo-Latin, itself from Latin iris, from Greek iris) + -ic, hence cognate with Etymology 2
Adjective
(-)
(chemistry) containing tetravalent iridium
Derived terms
* iridico-
* iridic oxide
See also
* iridious
Etymology 2
Adjective
(-)
(medicine) Of or relating to the iris of the eye.
Synonyms
* iridal
References
*
ridic
English
External links
* ridic
in Oxford Dictionaries Online, Oxford University Press, 2012