intr.v., -bered, -ber·ing, -bers.
To climb with difficulty, especially on all fours; scramble.
n.
A difficult, awkward climb.
[Middle English clambren, probably frequentative of climben, to climb. See climb.]
clamberer clam'ber·er n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.