ticker vs cardiac muscle

ticker and cardiac muscle both are nouns.

Word	Noun	Adjective	Verb	Adverb
ticker	Yes	No	No	No
cardiac muscle	Yes	No	No	No

ticker (noun)	cardiac muscle (noun)
a character printer that automatically prints stock quotations on ticker tape	the muscle tissue of the heart; adapted to continued rhythmic contraction
a small portable timepiece
the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body