jumar

(redirected from jumars)

ju·mar

(jo͞o′mär)
n.
A device used in ascending a fixed rope, having a springloaded cam that grips the rope when weight is applied but allows free movement upwards when the load is lifted.

[Formerly a trademark.]

ju′mar v.

jumar

(ˈdʒuːmə)
n
(Mountaineering) Also called: jumar clamp a clamp with a handle that can move freely up a rope on which it is clipped but locks when downward pressure is applied
vb (intr)
(Mountaineering) to climb up a fixed rope using jumars
[C20: Swiss name]

jumar


Past participle: jumared
Gerund: jumaring

Imperative
jumar
jumar
Present
I jumar
you jumar
he/she/it jumars
we jumar
you jumar
they jumar
Preterite
I jumared
you jumared
he/she/it jumared
we jumared
you jumared
they jumared
Present Continuous
I am jumaring
you are jumaring
he/she/it is jumaring
we are jumaring
you are jumaring
they are jumaring
Present Perfect
I have jumared
you have jumared
he/she/it has jumared
we have jumared
you have jumared
they have jumared
Past Continuous
I was jumaring
you were jumaring
he/she/it was jumaring
we were jumaring
you were jumaring
they were jumaring
Past Perfect
I had jumared
you had jumared
he/she/it had jumared
we had jumared
you had jumared
they had jumared
Future
I will jumar
you will jumar
he/she/it will jumar
we will jumar
you will jumar
they will jumar
Future Perfect
I will have jumared
you will have jumared
he/she/it will have jumared
we will have jumared
you will have jumared
they will have jumared
Future Continuous
I will be jumaring
you will be jumaring
he/she/it will be jumaring
we will be jumaring
you will be jumaring
they will be jumaring
Present Perfect Continuous
I have been jumaring
you have been jumaring
he/she/it has been jumaring
we have been jumaring
you have been jumaring
they have been jumaring
Future Perfect Continuous
I will have been jumaring
you will have been jumaring
he/she/it will have been jumaring
we will have been jumaring
you will have been jumaring
they will have been jumaring
Past Perfect Continuous
I had been jumaring
you had been jumaring
he/she/it had been jumaring
we had been jumaring
you had been jumaring
they had been jumaring
Conditional
I would jumar
you would jumar
he/she/it would jumar
we would jumar
you would jumar
they would jumar
Past Conditional
I would have jumared
you would have jumared
he/she/it would have jumared
we would have jumared
you would have jumared
they would have jumared
References in periodicals archive ?
Aphroditids are carnivorous opportunistic predators, specialized in slow or sessile preys (Fauchald & Jumars, 1979), feeding on a wide variety of prey, like other annelids, small crustaceans, mollusks and diatoms (Pettibone, 1953).
Diffusional deposition of particles is also possible (Shimeta 1993), as are mechanisms involving inertial forces when Reynolds number at the filaments exceed 0.1 (Shimeta & Jumars 1991, Ward 1996).
Pisionidens indica is known to inhabit the dynamic surf zone of tropical beaches and is well adapted to burrowing in sands (McCarthy, Laws, Estabrooks, Bailey-Brock, & Kay, 2000; Jumars, Dorgan, & Lindsay, 2015).
Los especimenes hallados se agruparon en los seis gremios troficos: depositivoros superficiales, depositivoros subsuperficiales, carnivoros, herbivoros, filtradores y omnivoros; segun la revision actualizada de Jumars (2015), sobre el articulo de Fauchald & Jumars, (1979).
Suspension-feeding animals generally have mechanisms for efficiently directing water to food-collecting surfaces, and then efficiently and effectively capturing available food particles from the incoming seawater (reviewed by Yonge, 1928; Jorgensen, 1955, 1966; Shirneta and Jumars, 1991; Ward and Shumway, 2004; Riisgard and Larsen, 2010).
Probably, the deposition of algae within the crevices is due to the accumulation of debris in them and the possible establishment of refuges (Bergey, 1999; Nowell and Jumars, 1984; Davis and Barmuta, 1989; Snelgrove et al., 1993).
By now we had reached the bottom of the ropes fixed by Greg and George, so all we had to do was clip our jumars to the lines and half-climb, half-pull on the jumar as we ascended--but now I discovered that Cronlund did not have an ascender of any kind.
Paterson GL, Wilson GD, Cosson N, Lamont PA (1998) Hessler and Jumars (1974) revisited: abyssal polychaete assemblages from the Atlantic and Pacific.
With her harness and helmet and Jumars (mechanical rope ascenders), Nadkarni is a scientist able to connect with a popular audience.