“+ noun
Etymology: ultramicro- + chemistry
: chemistry dealing with very minute quantities of substances (as a microgram or less) — compare microchemistry
“+ noun
Etymology: ultramicro- + chemistry
: chemistry dealing with very minute quantities of substances (as a microgram or less) — compare microchemistry
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012