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.
A plate boundary is where the tectonic plates meet.There are three kinds of boundaries:convergent,divergent,and transform boundaries. subduction zone can be a result of a convergent plate boundary, but the terms are not synonymous. If the two convergent plates are continental, neither of them will subduct.