noncoronavirus adjective 1noun 1forms 1 adjective1 •Not pertaining to coronaviruses; noncoronaviral.Taken together, the results of this study demonstrated for the first time that the BCV genome contains a sequence that functions as a packaging signal, at least when appended to a noncoronavirus RNA. — 2000 noun1 •That which is not a coronavirus.The SARS virus is a coronavirus, which is significantly different from other human coronaviruses. There is no evidence of exchange of genetic material with noncoronaviruses. — 2010 formsnoncoronaviruses