It means no tail. It has no tail, it lacks tail. It is the Order of amphibians, to which frogs and toads belong. Frog, toad.
ANUROse is of a / / unaorden of amphibians, where adult State, are devoid of tail, like the frog and the toad.
Order of amphibian that has no tail; whose etymology in Greek would be 945; 957; ( an, " No " ) and 959; 965; 961; 945; ( oura, " 34 tail; ).