Wiktionary
n. (context geomorphology English) A conical mound with an ice core (that is, a mound of earth-covered ice), particularly if lasting more than a year; caused by permafrost uplift.
Wikipedia
A pingo, also called a hydrolaccolith, is a mound of earth-covered ice found in the Arctic and subarctic that can reach up to in height and up to in diameter. The term originated as the Inuvialuktun word for a small hill. The plural form is "pingos".
A pingo is a periglacial landform, which is defined as a nonglacial landform or process linked to colder climates. "Periglacial" suggests an environment located on the margin of past glaciers. However, freeze and thaw cycles influence landscapes outside areas of past glaciation. Therefore, periglacial environments are anywhere that freezing and thawing modify the landscape in a significant manner. They are essentially formed by ground ice which develops during the winter months as temperatures fall.
Usage examples of "pingo".
She climbs a little round hill, a frost-heaved pingo, treading where no one has ever trod before, and looks south.
Chori and Pingo do not speak Spanish, they speak only Tawahka, but I yell at them in Spanish to show them my superiority, and you must yell at them, too.
On several occasions Pingo had to get out and chop a notch through a half-sunken log to allow the boat to pass.
Chori and Pingo, who were building a hut while Don Alfonso shouted directions and heaped criticism on them.
He began shouting orders to Chori and Pingo, who rushed about, equally terrified, only too happy to be leaving.
Don Alfonso, Chori, and Pingo were already in the boats, fretting, waiting to go.
The boat moved on through curtains of vines, which Pingo slashed away at.
Tom dragged him through the water to the boat, and Pingo and Sally hauled him in.
Chori and Pingo went hunting and returned an hour later with a gutted and quartered deer, the bloody chunks wrapped in palm fronds.
Alfonso roasted the loin chops over the fire while Pingo and Chori built a smoking rack over a second fire nearby.
But it will be sad for me to see Chori and Pingo die, and Vernon die, and to see the Curandera die, who is so pretty with many fine years of lovemaking ahead of her.
Tom and Vernon laid Pingo down, and Tom bent over him, desperately feeling for a pulse.
An expanding bullet had struck Pingo in the back, between the shoulder blades, and emerged with explosive force from his chest, leaving a gaping hole more than six inches across.
He could see in her face everything he was feeling: the shock and surprise of the attack, horror at the death of Pingo, dread at the loss of all their supplies, determination to survive.
Cecil used to refer to me as Darling Pingo and it made me feel very uncomfortable.