(n.) Geophysics. A shear wave that is polarized so that its particle motion and direction of propagation occur in a vertical plane. See: Converted Wave, S-Wave, SH-Wave
Schlumberger Ltd. (The World's Leading Supplier Of Technology, Integrated Project Management And Information Solutions to Customers Working in The Oil and Gas Industry Worldwide), Schlumberger Oilfield Glossary Cedex, France 2014. http://www.glossary.oilfield.slb.com/en/Terms/sym/ a.aspx, (Ergo - Brit) {766}