- 1. n. The spine. Source: opted
- 2. n. The continued stem or midrib of a pinnately compound leaf, as in a rose leaf or a fern. Source: opted
- 3. n. The principal axis in a raceme, spike, panicle, or corymb. Source: opted
- 4. n. The shaft of a feather. The rhachis of the after-shaft, or plumule, is called the hyporhachis. Source: opted
- 5. n. The central cord in the stem of a crinoid. Source: opted
- 6. n. The median part of the radula of a mollusk. Source: opted
- 7. n. A central cord of the ovary of nematodes. Source: opted
- 8. 1. (Anat.) The spine. 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. 3. (Zoöl.) (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. Source: webster
- 9. 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. Source: ecdict
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