trefoil vs medic

trefoil and medic both are nouns.

Word	Noun	Adjective	Verb	Adverb
trefoil	Yes	No	No	No
medic	Yes	No	No	No

As nouns, trefoil and medic are synonyms defined as:

trefoil and medic: any of several Old World herbs of the genus Medicago having small flowers and trifoliate compound leaves

Other synonyms of trefoil include medick.

trefoil (noun)	medic (noun)
an architectural ornament in the form of three arcs arranged in a circle	a medical practitioner in the armed forces
a plant of the genus Trifolium	any of several Old World herbs of the genus Medicago having small flowers and trifoliate compound leaves
any of several Old World herbs of the genus Medicago having small flowers and trifoliate compound leaves