skimmer

noun

1.
a rapid superficial reader
Derived from:
skim
2.
a cooking utensil used to skim fat from the surface of liquids
Derived from:
skim
3.
a stiff hat made of straw with a flat crown
4.
gull-like seabird that flies along the surface of the water with an elongated lower mandible immersed to skim out food