rachis
/ˈreɪkɪs/
词源链
- 英语English
rachis
词源说明
From New Latin rhachis/rachis, from Ancient Greek ῥάχις (rhákhis, “spine, ridge”).
释义
名词noun
- 1(obsolete, zoology, anatomy) The spinal column, or the vertebrae of the spine. [17th–19th c.]
- 2(zoology) An anatomical shaft or axis in a marine invertebrate. [from 18th c.]
- 3(ornithology) The central