(Britain) The hierarchy of owned housing.

(computing) A technique for describing and drawing electrical logic schematics

(biochemistry) Any of several naturally occurring organic compounds having a series of oxygen-containing heterocyclic rings arranged in the form of a ladder; most are poisonous

(nautical) a flight of stairs or a ladder for lowering over the side of a ship for access to and from a small boat.

A flexible ladder, constructed of rope, often with wooden rungs, suspended from the top

(genetics) A reagent consisting of a solution of DNA of specified length; used in gel electrophoresis as a standard.

plural of companion ladder

plural of DNA ladder

A structure built on or around dams or locks to facilitate the migration of fish.

A ladder with steps or treads instead of rungs that is hinged in the middle to form an inverted V, with stays to keep the two halves at a fixed angle.