Wing-nut

1 definition found

From WordNet (r) 2.0 [wn]:

  wing-nut
       n 1: any tree of the genus Pterocarya; fruit is a small winged
            nutlet; Caucasus to southeastern Asia [syn: {wing nut}]
       2: a threaded nut with winglike projections for thumb and
          forefinger leverage in turning [syn: {wing nut}, {wing
          screw}, {butterfly nut}, {thumbnut}]