zootoxin vs animal toxin

zootoxin and animal toxin both are nouns.

Word	Noun	Adjective	Verb	Adverb
zootoxin	Yes	No	No	No
animal toxin	Yes	No	No	No

As nouns, zootoxin and animal toxin are synonyms defined as:

zootoxin and animal toxin: a toxin resembling bacterial toxins in its antigenic properties that is found in the fluids of certain animals

zootoxin (noun)	animal toxin (noun)
a toxin resembling bacterial toxins in its antigenic properties that is found in the fluids of certain animals	a toxin resembling bacterial toxins in its antigenic properties that is found in the fluids of certain animals