r 1 a 1 c 3 h 4 i 1 s 1
6 letters · 11 points in Scrabble
Meaning
noun axis of a compound leaf or compound inflorescence
noun the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
originFrom New Latin rachis, from Ancient Greek ῥάχις (rhákhis, “spine, ridge”).
Etymology from Wiktionary, CC BY-SA 3.0