Definition of strakes:
(n) :
(nautical) A continuous line of plates or planks running from bow to stern that contributes to a vessel's skin. (FM 55-501).
(n) :
(aviation) A type of aerodynamic surface mounted on an aircraft fuselage to fine-tune the airflow.
(n) :
(fluid dynamics) Also used more generally to regulate fluid flow in pipes or vents to prevent turbulence or vortexes.
(n) :
(engineering) A shaped piece of wood used to level a bed or contour the shape of a mould, as for a bell
(n) :
A trough for washing broken ore, gravel, or sand; a launder.
(n) :
(archaic) An iron fitting of a traditional wooden wheel, such as a hub component or bearing (e.g., box, bushel), a cleat, or a rim covering.