milk sickness vs trembles

milk sickness and trembles both are nouns.

Word	Noun	Adjective	Verb	Adverb
milk sickness	Yes	No	No	No
trembles	Yes	No	No	No

As nouns, milk sickness and trembles are synonyms defined as:

milk sickness and trembles: disease of livestock and especially cattle poisoned by eating certain kinds of snakeroot

milk sickness (noun)	trembles (noun)
caused by consuming milk from cattle suffering from trembles	disease of livestock and especially cattle poisoned by eating certain kinds of snakeroot
disease of livestock and especially cattle poisoned by eating certain kinds of snakeroot