the sound of any vapor or gas issuing from a vent under pressure.
Metallurgy. a disturbance caused by gas or steam blowing through molten metal.
Also called blow molding. a method of producing hollowware by injecting air under pressure into a molten mass, as of glass or plastic, and shaping the material within a mold.
Origin of blowing
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019