extension ladder

American  

noun

1. a ladder having two or more sections joined by a sliding mechanism that allows the ladder to be extended to the total length.

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Etymology

Origin of extension ladder

First recorded in 1870–75

Example Sentences

Several neighbors reportedly placed an extension ladder to the upstairs bedroom but were unable to get the children out.

From Seattle Times

Two firefighters stood on 20-foot extension ladders and fought the flames in the attic, trying to establish a horizontal line to sweep the fire with water.

From Los Angeles Times

They tipped over a 24-foot extension ladder from the shore to a small island in the water and crawled across the rungs.

From Los Angeles Times

Painting two stories means extension ladders and scaffolding — probably contractor territory.

From Washington Post

Labor Director Michael Kleinik says safety precautions are vital when climibing, “from the smallest step ladder to the tallest extension ladder.”

From Washington Times