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strong +‎ back


strongback (plural strongbacks)

  1. (nautical) The fore-and-aft spar extending from stem to stern on a lifeboat and serving as a raised spreader for a boat cover. (FM 55-501).
  2. (nautical) A strong bar placed across a hatch opening to hold hatch boards or hatch covers. (FM 55-501).
  3. (carpentry) a load bearing post with a "T" cross section, where the short T-tail prevents bowing of the long post
  4. (sculpture) a backing pole used to reinforce and stabilize vertically oriented sculptures
  5. (space science) A transporter-erector