rachis
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.ra·chis
noun \ˈrā-kəs, ˈra-\ plural ra·chis·es also ra·chi·des \ˈra-kə-ˌdēz, ˈrā-\
Definition of RACHIS
1
: an axial structure: as a (1) : the elongated axis of an inflorescence (2) : an extension of the petiole of a compound leaf that bears the leaflets b : the distal part of the shaft of a feather that bears the web
2
Origin of RACHIS
New Latin rachid-, rachis, from Greek rhachis; akin to Greek rhachos thorn, Lithuanian ražas dry twig, tine
First Known Use: 1785
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