avalanche

(redirected from avalanches)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.
Nuclear medicine Avalanche ionization
Wilderness medicine A natural disaster in which massive unsorted mixtures of snow/ice/rock/mud cascade down a steep incline. Powder snow avalanches can exceed speeds of 300 km/h, and masses of 10,000,000 tonnes
Statistics Europe, 150 deaths/year; USA/Canada, 15/year; most are recreational—e.g., snowmobilers, mountaineers, back-country skiers
Avalanche risks Decreased snow stability; slope angles > 35º
Emergency action Do not wait; even in well-equipped ski areas, helicopters take 45 minute to arrive
Survival 15 minutes—85%; 30 minutes—40%; 1 hour—20%; 2 hours—0%
Cause of death Crush injury, hypothermia, suffocation

avalanche

Geomedicine A natural disaster in which a massive block of snow cascades down a steep incline Statistics In North America, ± 15 die thereof/yr; in Europe, 150/yr; most are recreational deaths–eg, snowmobilers, mountaineers, backcountry skiers Avalanche risks ↓ Snow stability; slope angles > 35º COD Crush injury, asphyxia. See Geological disaster.
References in classic literature ?
But at this moment his eyes closed involuntarily, to receive more resolutely the terrible avalanche which was about to fall on his head, and to engulf his life.
Here Van Horn was swept off his legs by an avalanche of return boys who had cluttered the deck with the first squall.
Some three days after Fan's joyful call Polly was startled on entering the Shaws' door, by Maud, who came tumbling down stairs, sending an avalanche of words before her, "He 's come before he said he should to surprise us
He went down beneath that avalanche of bestial savagery still working his gun and with his face toward his antagonist.
A week later Miss Cornelia descended like an avalanche upon the little house.
And," added Captain Nicholl, "on a flat ground, the projectile will remain motionless when it has once touched; whereas on a declivity it would roll like an avalanche, and not being squirrels we should not come out safe and sound.
He asked her to marry him, and his fatness hovered above her like an avalanche.
It was an avalanche of fury that Johnson strove vainly to fend off.
Immense glaciers approached the road; I heard the rumbling thunder of the falling avalanche and marked the smoke of its passage.
From the first stir of the air felt on his cheek the gale seemed to take upon itself the accumulated impetus of an avalanche.
An earthquake, a landslip, an avalanche, overtake a man incidentally, as it were -- without passion.
Offered in multiple locations where avalanches can occur, BRP invites riders of all brands to attend and encourages those who register to bring their friends and riding buddies to ensure those they ride with are also well informed.