Buckling (of a strut or column)
Horizontal deflection of a column or strut caused by an eccentric or excessive compressive vertical load.
Note: In French the phenomenon is called flambage and the resultant is called flambement.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM