D defs.my
Entry 2 senses Webster, 1913

Rachis

/(rā"kĭs)/ · Ra·chis · IPA /ˈɹeɪkɪs/
01 n. The spine; the vertebral column.
pl. Rachises, Rachides ((rā"kĭs*ĕz))
  1. 1.
    The spine; the vertebral column.(Anat.)
  2. 2.
    Same as Rhachis.(Bot. & Zool.) See: Rhachis