Associations to the word «Rachis»

RACHIS, noun. (botany) The main shaft of either a compound leaf, head of grain, or fern frond.

RACHIS, noun. (zoology) (anatomy) The spine or the vertebrae of the spine.

RACHIS, noun. (ornithology) The central shaft of a feather.

RACHIS, noun. Axis of a compound leaf or compound inflorescence.

RACHIS, noun. The series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back".