“+ noun
Etymology: petr- + chemistry
1. : the chemistry of rocks
2. : the chemistry of petroleum ; especially : a branch of chemistry dealing with the production of petrochemicals
“+ noun
Etymology: petr- + chemistry
1. : the chemistry of rocks
2. : the chemistry of petroleum ; especially : a branch of chemistry dealing with the production of petrochemicals
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012