rhachis的中文意思、音标与词形变化

n. 叶轴, 花轴

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.