Hypertext Webster Gateway: "rachis"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Rachis \Ra"chis\, n.; pl. E. {Rachises}, L. {Rachides}. [NL.,
fr. Gr. ? ?.] [Written also {rhachis}.]
1. (Anat.) The spine; the vertebral column.
2. (Bot. & Zo["o]l.) Same as {Rhachis}.
From WordNet (r) 1.7 (wn)
rachis
n 1: axis of a compound leaf or compound inflorescence
2: the series of vertebrae forming the axis of the skeleton and
protecting the spinal cord; "the fall broke his back"
[syn: {spinal column}, {vertebral column}, {spine}, {backbone},
{back}]
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