The AI-powered English dictionary
plural jumars
(climbing) A device, used to clip on a rope, that tightens when weight is applied, thus allowing the rope to be climbed. quotations examples
Jacob handed her the ATC belay device and jumar.
2019, Namwali Serpell, The Old Drift, Hogarth, page 552
third-person singular simple present jumars, present participle jumaring or jumarring, simple past and past participle jumared or jumarred
(intransitive) To climb using this device. examples