wing-nut

n nut with projections so that it can be turned by a thumb and a finger on a screw or bolt 蝶形螺帽; 元宝螺母. =>illus at bolt 见 bolt 插图.

windowsill, windpipe, windscreen, windscreen (Brit) (US `windshield), windshield, windsurf, windsurfer, windsurfing, windward, windy, wine, wine bar, wine-cellar, wine-celler, wineglass, winepress, winery, wing, wing commander, wing-chair, wing-span, wingding, winger, wingless, wink, winker, winkle, winkle-picker, winner, winner, winning, winning, winning-post, winnings, winnow, wino, winsome, winsomely, winsomeness, winter, winter sports,