Adjective: pinnate 'pi,neyt
- (of a leaf shape) featherlike; having leaflets on each side of a common axis
"The pinnate leaves of the fern resembled delicate feathers";
- pinnated
- (zoology) having parts arranged on each side of a common axis, like a feather
"The pinnate antennae of certain moths help them detect pheromones"
See also: compound
Encyclopedia: Pinnate