strakes

noun

1. An iron fitting of a medieval cart wheel.

2. A type of aerodynamic surface mounted on an aircraft fuselage to fine-tune the airflow.

3. A continuous line of plates or planks running from bow to stern that contributes to a vessel's skin. (FM 55-501).

4. A shaped piece of wood used to level a bed or contour the shape of a mould, as for a bell

5. A trough for washing broken ore, gravel, or sand; a launder.

6. A streak.