ox·a·lis 
(ŏksə-lĭs, ŏk-sălĭs)
(ŏksə-lĭs, ŏk-sălĭs)n.
Any of numerous plants of the genus Oxalis, having cloverlike compound leaves usually with three leaflets and five-petaled, variously colored flowers. Also called sorrel, wood sorrel.
[Latin oxalis, wood sorrel, from Greek, from oxus, sour; see ak- in the Appendix of Indo-European roots.]
oxaliswindowbox wood sorrelOxalis rubra
- precaution
- precautional
- precautionary
- precede
- precedence
- precedency
- precedent
- precedential
- preceding
- precentor
- precentorial
- precept
- preceptive
- preceptively
- preceptor
- preceptorial
- preceptorially
- preceptorship
- preceptory
- preceramic
- precess
- precession
- precessional
- precession of the equinoxes
- pre-Christian