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 ?
2007), suggesting a hydrosol filtration mechanism, in which particles are intercepted by the frontal surface of the gill filaments and adhere to the overlying mucous strings (Shimeta & Jumars 1991, Ward et al.
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.
With her harness and helmet and Jumars (mechanical rope ascenders), Nadkarni is a scientist able to connect with a popular audience.
Trophic groups were determined using Fauchald & Jumars (1979) and Rouse & Pleijel (2001).
So in an effort to sort out my jumars from my karabiners, I buckled on my harness, gathered up my ice axe and got ready to take the plunge (or hopefully not) to learn about mountaineering in Switzerland.
Mediomastus ambiseta is a non-selective subsurface-deposit feeding polychaete (Fauchald & Jumars 1979; Flint et al.
Although the available literature gives practically no information concerning the environmental particularities or habitat under which that fauna was collected, and though these families are geographically widely distributed and have been found in a broad variety of habitats, the fact that they are composed basically of mobile or discreetly mobile and mainly carnivorous species (Fauchald and Jumars 1979), could indicate that the polychaetes of the islands have been mainly collected from rocky environments, including dead coral substrates.
In addition, feeding modes of species were determined from the literature (Fauchald and Jumars 1979; Morris et al.
Particle capture by filter feeders, for example, differs considerably among sites because of velocity and organic content of water currents (Shimeta & Jumars 1991).
Minimizing the angles at the hinged joints along the walls decreased the amount of flow separation at the hinge (Nowell & Jumars 1987; Judge et al.
It has been suggested by many authors (Crisp 1955, Crisp 1974, Williams 1980, Nowell & Jumars 1984, Ertman & Jumars 1988, Eckman 1990, Harvey et al.