I. ˈ ̷ ̷ˌ ̷ ̷ noun
Etymology: back (I) + pack
1. : a load carried on the back (as by knapsack)
2. : a piece of equipment (as a fire extinguisher) designed for operation while being carried on the back
II. transitive verb
: to carry (food or equipment) on the back especially in camping
each wooden roof beam … had to be backpacked from the plain below up the steep trail — Holiday
summer hikers who are backpacking all their equipment — K.A.Henderson
intransitive verb
: to carry one's food or equipment on the back especially in camping
crampons would have been useful, but when backpacking, we hadn't considered their extra weight worth taking — Appalachia