Definition of "climber"
climber1
/ˈklaɪmə/
noun
plural climbers
Someone or something that climbs (such as a mountain climber).
(ornithology) A bird that climbs, such as a parrot or woodpecker; specifically (archaic), a bird having two toes pointing forward, and two pointing backward, formerly regarded as being from the order Scansores or Zygodactyli (now obsolete as the birds formerly in this order have been reclassified into different orders); a zygodactyl.