Breadcrumb Home > Thesaurus > R Synonyms of rachis Find synonyms for: Noun 1. rachis, axis usage: axis of a compound leaf or compound inflorescence 2. spinal column, vertebral column, spine, backbone, back, rachis, skeletal structure usage: the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of rachis (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: aphasia Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language