char·mo·ni·um 
(chär-mōnē-əm)
(chär-mōnē-əm)n.
Any of various elementary particles consisting of a charm quark and an antiquark.
[From CHARM.]
- irresoluble
- irresolute
- irresolutely
- irresoluteness
- irresolution
- irresolvable
- irrespective of
- irrespirable
- irresponsibility
- irresponsible
- irresponsibleness
- irresponsibly
- irresponsive
- irresponsively
- irresponsiveness
- irretrievability
- irretrievable
- irretrievableness
- irretrievably
- irreverence
- irreverent
- irreverently
- irreversibility
- irreversible
- irreversibleness