pinnate -
Having two rows of branches, lobes, leaflets, or veins arranged on each side of a common axis.
pinnate -
Having a winglike tuft of long feathers on each side of the neck.
Wikipedia
Pinnate is a term used to describe feather-like or multi-divided features arising from both sides of a common axis in plant or animal structures, and comes from the Latin word pinna meaning "feather", "wing", or "fin". A similar term is pectinate, which refers to a comb-like arrangement of parts (arising from one side of an axis). The term contrasts somewhat with palmate, in which the parts or structures radiate out from a common point.
