pinnate
/ˈpɪnɪt/adjective
1- Botany (of a compound leaf) having leaflets arranged on either side of the stem, typically in pairs opposite each other【植】（复叶）羽状的。
1.1
- Zoology (especially of an invertebrate animal) having branches, tentacles, etc., on each side of an axis, like the vanes of a feather【动】（尤指无脊椎动物）羽状的。
派生词
pinnated
adjectivepinnately
adverbpinnation
/-ˈneɪʃən/ noun词源
early 18th cent.: from Latin pinnatus 'feathered', from pinna, penna （see PINNA）.