shearography
n.— «In the second project, Davis and his team developed a technique called “shearography” to ensure that foam will not come off the tank during launch and ascent. Shearography uses a laser to detect defects.» —“Damien grad aids effort to fix shuttle tank foam” by Rosemarie Bernardo Star Bulletin (Honolulu, Hawaii) July 31, 2005. (source: Double-Tongued Dictionary)