ALULA
- three feathers springing from the base of the primaries [n -S]
- a tuft of feathers on the first digit of a bird's wing [n ALULAE] : ALULAR [adj]
- the group of three to six small, rather stiff feathers growing on the first digit, pollex, or thumb of a bird's wing
- membranous lobe at the base of each wing of a dipterous insect
- the process of a bird's wing corresponding to the thumb and bearing a few short quills called also bastard wing