Rhachis

Same as: rachis

1.

The continued stem or midrib of a pinnately compound leaf, as in a rose leaf or a fern.

2.

The principal axis in a raceme, spike, panicle, or corymb.

3.

The shaft of a feather. The rhachis of the after-shaft, or plumule, is called the hyporhachis.

4.

The central cord in the stem of a crinoid.

5.

The median part of the radula of a mollusk.

6.

A central cord of the ovary of nematodes.

អត្ថន័យផ្សេងទៀត

1.

The spine