What is another word for rachis?
Pronunciation: [ɹˈat͡ʃa͡ɪz] (IPA) 
The word "rachis" refers to the main axis or stem of a plant or a spine in an animal. There are several synonyms for this word that can be used interchangeably depending on the context of use. Some common synonyms for "rachis" include axis, spine, backbone, stem, central vein, and support. The term "axis" is often used in reference to the central part of a plant such as the stem or trunk. "Spine" and "backbone" are commonly used in reference to the skeletal structure of animals. "Stem" and "central vein" are both used in reference to the vascular structure of plants. Finally, "support" can be used to refer to any structure providing support for an organism.
