Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun rachis

2 senses of rachis

Sense 1
rachis -- (axis of a compound leaf or compound inflorescence)
       => axis -- (the main stem or central part about which plant organs or plant parts such as branches are arranged)

Sense 2
spinal column, vertebral column, spine, backbone, back, rachis -- (the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back")
       => skeletal structure -- (any structure created by the skeleton of an organism)