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key-block
Arctic
DCHP-1 (pre-1967)
Entry from the DCHP-1 (pre-1967)
This entry may contain outdated or offensive information, terms, and examples.
n.
a polygonal block of snow dropped into place in the centre of an igloo dome and serving to lock the structure firmly together. See picture at igloo.
Quotations
1823
The huts themselves, are entirely made of square blocks of solid snow, with a larger key-block at the top of the rotunda.
1957
The walls usually fell in just as I was about to fit the key-block in the top.