cerastes vs horned asp

cerastes and horned asp both are nouns.

Word	Noun	Adjective	Verb	Adverb
cerastes	Yes	No	No	No
horned asp	Yes	No	No	No

As nouns, cerastes and horned asp are synonyms defined as:

cerastes and horned asp: highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye

Other synonyms of cerastes include Cerastes cornutus, horned viper, sand viper.

cerastes (noun)	horned asp (noun)
highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye	highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye