Meaning Of Rhachis

n.

The spine.

n.

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

n.

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

n.

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

n.

The central cord in the stem of a crinoid.

n.

The median part of the radula of a mollusk.

n.

A central cord of the ovary of nematodes.