Vipera aspis vs asp viper

Vipera aspis and asp viper both are nouns.

Word	Noun	Adjective	Verb	Adverb
Vipera aspis	Yes	No	No	No
asp viper	Yes	No	No	No

As nouns, Vipera aspis and asp viper are synonyms defined as:

Vipera aspis and asp viper: of southern Europe; similar to but smaller than the adder

Other synonyms of Vipera aspis include asp.

Vipera aspis (noun)	asp viper (noun)
of southern Europe; similar to but smaller than the adder	of southern Europe; similar to but smaller than the adder