Rhachises

Rhachises
Rhachis Rha"chis, n.; pl. E. {Rhachises}, L. {Rhachides}. [See {Rachis}.] [Written also {rechis}.] 1. (Anat.) The spine. [1913 Webster]

2. (Bot.) (a) The continued stem or midrib of a pinnately compound leaf, as in a rose leaf or a fern. (b) The principal axis in a raceme, spike, panicle, or corymb. [1913 Webster]

3. (Zo["o]l.) (a) The shaft of a feather. The rhachis of the after-shaft, or plumule, is called the hyporhachis. (b) The central cord in the stem of a crinoid. (c) The median part of the radula of a mollusk. (d) A central cord of the ovary of nematodes. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • rechis — Rhachis Rha chis, n.; pl. E. {Rhachises}, L. {Rhachides}. [See {Rachis}.] [Written also {rechis}.] 1. (Anat.) The spine. [1913 Webster] 2. (Bot.) (a) The continued stem or midrib of a pinnately compound leaf, as in a rose leaf or a fern. (b) The… …   The Collaborative International Dictionary of English

  • Rhachides — Rhachis Rha chis, n.; pl. E. {Rhachises}, L. {Rhachides}. [See {Rachis}.] [Written also {rechis}.] 1. (Anat.) The spine. [1913 Webster] 2. (Bot.) (a) The continued stem or midrib of a pinnately compound leaf, as in a rose leaf or a fern. (b) The… …   The Collaborative International Dictionary of English

  • Rhachis — Rha chis, n.; pl. E. {Rhachises}, L. {Rhachides}. [See {Rachis}.] [Written also {rechis}.] 1. (Anat.) The spine. [1913 Webster] 2. (Bot.) (a) The continued stem or midrib of a pinnately compound leaf, as in a rose leaf or a fern. (b) The… …   The Collaborative International Dictionary of English

  • rhachis — /ray kis/, n., pl. rhachises, rhachides /rak i deez , ray ki /. rachis. * * * …   Universalium

  • Phacellaria —   Gk phakelos, bundle; L. aria, pertaining to. Racemes permanently adpressed and their rhachises bound together by interlocking hairs …   Etymological dictionary of grasses

  • rhachis — /ˈreɪkəs/ (say raykuhs) noun (plural rhachises or rhachides /ˈrækədiz/ (say rakuhdeez), /ˈreɪkədiz/ (say raykuhdeez)) → rachis …  

  • rhachis — /ray kis/, n., pl. rhachises, rhachides /rak i deez , ray ki /. rachis. * * * rhachis see rachis …   Useful english dictionary

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