(of a leaf) pinnately divided, but not all the way down to the central axis.
‘The cuff bracelet is ornamented with chrysanthemums bordering a central faceted citrine and overlapping pinnatifid leaves engraved to delineate the veins.’
‘The leaves are sharply serrated, never pinnate or pinnatifid, sometimes the serration is confined to the apices.’
Origin
Mid 18th century from modern Latin pinnatifidus, from Latin pinnatus ‘feathered’ + fid- ‘cleft’ (from the verb findere).
Are You Learning English? Here Are Our Top English Tips