[pin-eyt, -it] /ˈpɪn eɪt, -ɪt/
resembling a feather, as in construction or arrangement; having parts arranged on each side of a common axis:
a pinnate branch; pinnate trees.
Botany. (of a leaf) having leaflets or primary divisions arranged on each side of a common stalk.
like a feather in appearance
(of compound leaves) having the leaflets growing opposite each other in pairs on either side of the stem
1727, from Latin pinnatus “feathered, winged,” from pinna “feather, wing” (see pin (n.)).
Having parts or divisions arranged on each side of a common axis in the manner of a feather. Ash, hickory, and walnut trees have pinnate leaves.
1. a combining form representing pinnate, in compound words: pinnatipartite. combining form 1. pinnate or pinnately: pinnatifid
[pi-nat-uh-fid] /pɪˈnæt ə fɪd/ adjective, Botany. 1. (of a leaf) pinnately cleft, with clefts reaching halfway or more to the midrib. /pɪˈnætɪfɪd/ adjective 1. (of leaves) pinnately divided into lobes reaching more than halfway to the midrib
/pɪˌnætɪˈpɑːtaɪt/ adjective 1. (of leaves) pinnately divided into lobes reaching just over halfway to the midrib
[pi-ney-shuh n] /pɪˈneɪ ʃən/ noun, Botany. 1. condition or formation.