a quick, involuntary inhalation that follows a spasm of the diaphragm and is suddenly checked by closure of the glottis, producing a short, relatively sharp sound. Usually, hiccups. the condition of having such spasms: She got the hiccups just as she began to speak.
Mount Hood is part of the Cascade Volcanic Arc, which formed as a  result of the convergent boundary between the North American Plate  and the Juan de Fuca Plate.Edit.ransform boundary: when two plates grind past each other. Convergent boundary: when the two plates collide.
Actually, the North American Plate and the Pacific plate form a transform boundary. There is no volcanism related with a transform boundary. Mt. Saint Helens was created by th â¦ e interactions of the North American plate and the Juan de Fuca plate.he Juan de Fuca plate went under the North American plate and is melted into material in the mantle. This â¦ is called a destructive plate margin. This material then comes up through the volcano, and solidifies, making a cone shaped volcano.