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piezoelectric crystalCardiac pacing A crystal that produces electrical signals when subjected to mechanical deformation; in pacing, PC sensors are used to detect motion, changes in pressure, etc, in certain rate-responsive pacemakers
a naturally produced angular solid of definite form.
the source of sound waves in ultrasonography.
crystals on radiographs caused by faulty use of fixative, commonly excess acidity or insufficient washing of the film.
recognizable crystals in tissues occur in crystal-associated cholangiohepatopathy, zinc and oxalate poisoning.
a brilliant organic deep purple dye.
crystal violet vaccine
an obsolete hog cholera (classical swine fever) vaccine.