Noun
trefoil -
an architectural ornament in the form of three arcs arranged in a circle
trefoil -
a plant of the genus Trifolium
clover
herbaceous plant ,
herb aromatic potherb used in cookery for its savory qualities
genus trifolium ,
trifolium any leguminous plant having leaves divided into three leaflets
alpine clover ,
trifolium alpinum European mountain clover with fragrant usually pink flowers
lesser yellow trefoil ,
trifolium dubium ,
hop clover ,
shamrock clover native to Ireland with yellowish flowers; often considered the true or original shamrock
crimson clover ,
italian clover ,
trifolium incarnatum southern European annual with spiky heads of crimson flower; extensively cultivated in United States for forage
purple clover ,
red clover ,
trifolium pratense erect to decumbent short-lived perennial having red-purple to pink flowers; the most commonly grown forage clover
trifolium reflexum ,
trifolium stoloniferum ,
buffalo clover clover of western United States
trefoil -
any of several Old World herbs of the genus Medicago having small flowers and trifoliate compound leaves
medic ,
medick
herbaceous plant ,
herb aromatic potherb used in cookery for its savory qualities
genus medicago ,
medicago a genus of herbs that resemble clover
medicago arborea ,
moon trefoil evergreen shrub of southern European highlands having downy foliage and a succession of yellow flowers throughout the summer followed by curious snail-shaped pods
medicago falcata ,
sickle alfalfa ,
sickle lucerne ,
sickle medick European medic naturalized in North America having yellow flowers and sickle-shaped pods
calvary clover ,
medicago echinus ,
medicago intertexta an annual of the Mediterranean area having spiny seed pods and leaves with dark spots
black medick ,
medicago lupulina ,
nonesuch clover ,
yellow trefoil ,
hop clover prostrate European herb with small yellow flowers and curved black pods; naturalized in North America
