Why avalanches are most deadly when they stop - Simon Trautman

engulf somebody/something

to surround or to cover somebody/something completely

maneuver

[countable] a movement performed with care and skill

descension

an act of moving downwards, dropping, or falling

slab

a thick, flat piece of stone, wood or other hard material

hoar frost

a layer of small pieces of ice that look like white needles and that form on surfaces outside when temperatures are very low

dew

the very small drops of water that form on the ground, etc. during the night

artillery

​[uncountable] large, heavy guns which are often moved on wheels

inflatable

​needing to be filled with air or gas before you use it

microscopic

[usually before noun] extremely small and difficult or impossible to see without a microscope

lining

a layer of material used to cover the inside surface of something

leftover

that has not been eaten or used at the end of something

synonym surplus

airborne

[not before noun] (of a plane or passengers) in the air

pneumonia

a serious illness affecting one or both lungs that makes breathing difficult

spleen

[countable] a small organ near the stomach that controls the quality of the blood cells