pinnatifid, a. Nat. Hist. (chiefly Bot.)
(pɪˈnætɪfɪd)
[ad. mod.L. pinnātifidus, f. pinnāt-us pinnate + findere, fid- to cleave, split. So F. pinnatifide, pennatifide.]
Of a leaf, etc.: Pinnately cleft or divided at least half-way to the middle.
| [1751 Linnæus Philos. Bot. 43 Folium..pinnatifidum est transversim divisum laciniis horizontalibus oblongis.] 1753 Chambers Cycl. Supp. s.v. Leaf, Pinnatifid Leaf expresses one divided into several parts in form of alæ. 1777 Lightfoot Flora Scot. I. 500 Centaurea scabiosa... Great Knapweed or Matfellon..the leaves are..all pinnatifid. 1857, 1883 [see pinnati-]. 1877–84 F. E. Hulme Wild Fl. p. viii. |
Hence piˈnnatifidly adv., in a pinnatifid manner.
| 1870 Hooker Stud. Flora 16 Leaves entire, pinnate, or pinnatifidly lobed. 1881 Horne Fiji 86 The leaf..is handsome and pinnatifidly divided. |