What is the two-word naming system?

Answer 1

Two-word name was first developed by Carolus Linnaeus. He chose two words from Latin for naming an organism. First word referred to Genus of organism and second word referred to species of organism.

Answer 2

You're thinking of the Linnean Classification system. It doesn't always confine itself to just two words. [For example, modern people are Homo sapiens sapiens ("man the double wise") while our distant kinfolk are Homo sapiens neanderthalensis("wise man from Neuman's valley") Our much more distant relation, the lowland gorilla, is officially Gorilla gorilla gorilla.)

The first name is the Genus, or generic name and is always capitalized; the second (and third) name is the species, and it's always lowercased.

The idea is that each living thing should have one name which is its alone, so it will never be confused with something else.

The first describer usually gets to give the name, but there are certain conventions, such as always being in (or at least looking like) Latin or Greek.

Answer 3

Binomial nomenclature