The Collaborative International Dictionary
Palmatisect
Palmatisect \Pal*mat"i*sect\, Palmatisected \Pal*mat`i*sect"ed\, a. [L. palmatus palmate + secare to cut.] (Bot.) Divided, as a palmate leaf, down to the midrib, so that the parenchyma is interrupted.
Wiktionary
palmatisect
a. (context botany of leaves English) Having lobes with incisions that extend almost up, but not quite to the petiole.