quartz-crystal
51quartz oscillator — One whose osciliation frequency is controlled by a piezoelectric quartz crystal …
52quartz resonator — A standard of frequency comparison making use of the sharply resonant properties of a piezoelectric quartz crystal …
53crystal ball — noun Date: 1848 1. a sphere especially of quartz crystal traditionally used by fortune tellers 2. a means or method of predicting future events …
54crystal oscillator — /krɪstl ˈɒsəleɪtə/ (say kristl osuhlaytuh) noun a source of electrical oscillations of very constant frequency determined by the physical characteristics of a quartz crystal …
55crystal clock — noun : quartz crystal clock …
56Quartz (electronique) — Quartz (électronique) Pour les articles homonymes, voir Quartz. Un quartz de 4 MHz dans un boîtier hermétique HC 49/US …
57Crystal — Crys tal (kr[i^]s tal), n. [OE. cristal, F. cristal, L. crystallum crystal, ice, fr. Gr. kry stallos, fr. kry os icy cold, frost; cf. AS. crystalla, fr. L. crystallum; prob. akin to E. crust. See {Crust}, {Raw}.] 1. (Chem. & Min.) The regular… …
58crystal — [kris′təl] n. [altered (modeled on L) < ME & OFr cristal, OE cristalla < L crystallum, crystal, ice < Gr krystallos < kryos: see CRUDE] 1. a) a clear, transparent mineral; esp., pure quartz b) a piece of such quartz cut in the form of …
59Crystal oscillator frequencies — Crystal oscillators can be manufactured for oscillation over a wide range of frequencies, from a few kilohertz up to several hundred megahertz. Many applications call for a crystal oscillator frequency conveniently related to some other desired… …
60Crystal healing — Quartz crystals are often used in crystal healing. Crystal healing is a pseudoscientific alternative medicine technique that employs stones and crystals as healing tools. The practitioner places crystals on different parts of the body, often… …
