ENVIRONMENT #671444 IATE #47258 inbhéartú Tagairt an Ghníomhaireacht Eorpach Comhshaoil (GEC) ga Inversionde inversionen Sainmhíniú 1.A reversal in the usual direction of a process, as in the change of density of water at 4° C. Tagairt 1.PITT; inversionfr inversiola