Definition of senecio
senecios
: any of a large genus (Senecio) of widely distributed composite plants that have alternate or basal leaves and flower heads usually with yellow ray flowers
Read the Latest from M-W
Origin and Etymology of senecio
New Latin, from Latin, old man, groundsel (from its hoary pappus), from sen-, senic-, senex old man
First Known Use: 1562
Medical Dictionary
senecio
play
noun
se·ne·cio
\si-ˈnē-sh(ē-ˌ)ō\
Medical Definition of senecio
1 capitalized : a genus of widely distributed plants (family Compositae) including some containing various alkaloids which are poisonous to livestock
2plural senecios : any plant of the genus Senecio
Seen and Heard
What made you want to look up senecio? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!