A trademark for: a large tube of compressed fibre into which wet concrete is poured and left to harden, used to form pillars, columns, etc., in building and construction.
Origin
1940s. From sono- + tube.
Definition of sonotube in US English:
sonotube
noun
North American
A trademark for: a large tube of compressed fibre into which wet concrete is poured and left to harden, used to form pillars, columns, etc., in building and construction.