|parə+ noun
Etymology: para- (I) + hydrogen
: molecular hydrogen in which the two hydrogen nuclei are spinning in opposite directions so that their contribution to the total angular momentum is zero — compare ortho-hydrogen
|parə+ noun
Etymology: para- (I) + hydrogen
: molecular hydrogen in which the two hydrogen nuclei are spinning in opposite directions so that their contribution to the total angular momentum is zero — compare ortho-hydrogen
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012