Definition of coronilla
1 a
capitalized
: a genus of Old World often woody herbs (family Leguminosae) having purple, pink, or yellow flowers in long-stalked axillary heads or umbels — see axseed, scorpion senna
b
plural -s
: any plant of the genus Coronilla
2
plural -s
or less commonly
coronillo
\-nē(ˌ)(y)ō\
[American Spanish coronilla, coronillo, from Spanish coronilla crown of the head, diminutive of corona crown, from Latin]
: a valuable timber tree (Gleditsia amorphoides) of Argentina the bark of which yields a saponin 
