| Sinistrorsal | a. [ L. sinistrorsus, sinistroversus, turned toward the left side; sinister left + vertere, vortere, versum, vorsum, to turn. ] Rising spirally from right to left (of the spectator); sinistrorse. [ 1913 Webster ] |
| sinistrorse | (adj) spiraling upward from right to left, Syn. sinistrorsal, Example: sinistrorse vines |