aerofoil

from WordNet (r) 3.0 (2006)

aerofoil
    n 1: a device that provides reactive force when in motion
         relative to the surrounding air; can lift or control a
         plane in flight [syn: {airfoil}, {aerofoil}, {control
         surface}, {surface}]

from The Collaborative International Dictionary of English v.0.48

Aerofoil \A"["e]r*o*foil`\, n. [A["e]ro- + foil.]
   A plane or arched surface for sustaining bodies by its
   movement through the air; a spread wing, as of a bird.
   [Webster 1913 Suppl.]

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