cartilaginous
/ˌkɑːtɪˈlædʒɪnəs/adjective
1- Anatomy (of a structure) made of cartilage【剖】（组织）由软骨构成的。
1.1
- Zoology (of a vertebrate animal) having a skeleton of cartilage【动】（脊椎动物）软骨的, 有软骨骨架的。
词源
late Middle English: from Old French, or from Latin cartilaginosus, from cartilago, cartilagin- 'cartilage'.