a fleeting show

a flash in the pan a flash of hope a flash of wit a flat tire a flea in one's ear a flicker of hope a flight of stairs a flock of a flood of a flood of people a flood of words a floor under wages

beta fungus beta galactoside beta globulin beta globulins beta glucosidase beta glucuronidase beta granules beta graphite beta hemelysin beta hemolysis