JUMAR CLIMBING


Meaning of JUMAR CLIMBING in English

jumar Climbing [ 'dʒu:mə ]

■ noun a clamp attached to a fixed rope that tightens when weight is applied and relaxes when it is removed.

■ verb ( jumars , jumaring , jumared ) climb using a jumar.

Origin

1960s: orig. in Swiss use, of unknown origin.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.