what is a binominal nomenclature mean?

Please explain in a simple manner.

Thank you

3 answers

http://simple.wikipedia.org/wiki/Binomial_nomenclature
bi two
nomeclature names

binomenclature= two names ,for instance
Homo Sapiens
Tyrannosaurus Rex
Apis Mellifica
Rose canina

So it is a system of naming things with two names.
oh okay thank you