anthrax vs splenic fever

anthrax and splenic fever both are nouns.

Word	Noun	Adjective	Verb	Adverb
anthrax	Yes	No	No	No
splenic fever	Yes	No	No	No

As nouns, anthrax and splenic fever are synonyms defined as:

anthrax and splenic fever: a highly infectious animal disease (especially cattle and sheep); it can be transmitted to people

anthrax (noun)	splenic fever (noun)
a highly infectious animal disease (especially cattle and sheep); it can be transmitted to people	a highly infectious animal disease (especially cattle and sheep); it can be transmitted to people
a disease of humans that is not communicable; caused by infection with Bacillus anthracis followed by septicemia