Having or consisting of two names; characterized by the use of binomial nomenclature.
From Latin bi- 'two' + nomen 'name' + -ous (adjective suffix meaning 'full of' or 'having'). An archaic or rare form emphasizing the characteristic of possessing two names.
This delightfully archaic adjective reveals how scientists in the 1700s-1800s struggled to describe the novelty of two-part naming—they needed a word that sounded as impressive and systematic as the system itself.
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