| rhachis | Origin: See Rachis Alternative forms: rechis. 1. <anatomy> The spine. 2. <botany> The continued stem or midrib of a pinnately compound leaf, as in a rose leaf or a fern. The principal axis in a raceme, spike, panicle, or corymb. 3. <zoology> The shaft of a feather. The rhachis of the after-shaft, or plumule, is called the hyporhachis. The central cord in the stem of a crinoid. The median part of the radula of a mollusk. A central cord of the ovary of nematodes. Source: Websters Dictionary (01 Mar 1998) |
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| rhachis |
A stemlike central gill axis supporting other elements.
Ãâó: www.fish.washington.edu/naturemapping/mollusks/glo...
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| rhachis |
the axis or axes of a compound leaf or in. florescence.
Ãâó: www.weeds.asn.au/gloss/new_gloss2.html
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| rhachischisis |
A congenital cleft in the spinal column. SYN: spondyloschisis.
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| rhachis |
Central axis of the gladius that typically extends the full length of the gladius and sometimes called the median field. The anterior end of the gladius consists of the rhachis only and the rhachis here is known as the free rhachis. The rhachis sometimes contains a thickened central ridge or keel. ...
Ãâó: tolweb.org/accessory/Cephalopod_Gladius_Terminolog...
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