| controlled substance | a drug or chemical substance whose possession and use are controlled by law |
crystal
watch crystal
watch glass | a protective cover that protects the face of a watch |
| crystal | glassware made of quartz |
| crystal | a crystalline element used as a component in various electronic devices |
| crystal ball | a glass or crystal globe used in crystal gazing by fortunetellers |
| crystal counter | a counter tube in which an ionizing event increases conductivity |
| crystal detector | a detector consisting of a fine wire in contact with a galena crystal, acts as a rectifier |
| crystal microphone | a microphone in which sound waves vibrate a piezoelectric crystal that generates a varying voltage |
crystal oscillator
quartz oscillator | an oscillator that produces electrical oscillations at a frequency determined by the physical characteristics of a piezoelectric quartz crystal |
| crystal pickup | a cartridge in which an output voltage is produced by the vibration of a piezoelectric crystal |
| crystal set | an early radio receiver using a crystal detector |
diode
semiconductor diode
junction rectifier
crystal rectifier | a semiconductor that consists of a p-n junction |
liquid crystal display
LCD | a digital display that uses liquid crystal cells that change reflectivity in an applied electric field, used for portable computer displays and watches etc. |
| piezoelectric crystal | a crystal that can be used as a transducer |
quartz battery
quartz mill | a stamp mill for stamping quartz |
| quartz crystal | a thin plate or small rod of quartz cut along certain lines and ground so that it can produce an electric signal at a constant frequency, used in crystal oscillators |
| quartz lamp | a mercury-vapor lamp that is enclosed in a quartz container instead of a glass container |
space lattice
crystal lattice
Bravais lattice | a -dimensional geometric arrangement of the atoms or molecules or ions composing a crystal |
| crystal gazing | staring into a crystal ball to arouse visions of future or distant events |
crystal
crystallization | a rock formed by the solidification of a substance, has regularly repeating internal structure, external plane faces |
ice crystal
snow mist
diamond dust
poudrin
ice needle
frost snow
frost mist | small crystals of ice |
Labrador tea crystal tea
Ledum groenlandicum | evergreen shrub of eastern North America having white or creamy bell-shaped flowers and dark green hairy leaves used for tea during American Revolution |
| quartz | a hard glossy mineral consisting of silicon dioxide in crystal form, present in most rocks (especially sandstone and granite), yellow sand is quartz with iron oxide impurities |
rock crystal
transparent quartz | a clear quartz used in making electronic and optical equipment |
cairngorm
smoky quartz | a smoky yellow or brown quartz |
gentian violet
crystal violet | a green crystal (violet in water) used as a dye or stain or bactericide or fungicide or anthelmintic or burn treatment |
quartz glass
quartz vitreous silica
lechatelierite
crystal | colorless glass made of almost pure silica |
| crystal | a solid formed by the solidification of a chemical and having a highly regular atomic structure |
| liquid crystal | a liquid exhibiting properties of a crystal that are not shown by ordinary liquids |
| rose quartz | a translucent roseed variety of quartz used for ornaments |
automated
machine-controlled
machine-driven | operated by automation, an automated stoker |
collectivist
collectivistic
collectivized
collectivised
state-controlled | subscribing to the socialistic doctrine of ownership by the people collectively |
limpid
lucid
luculent
pellucid
crystal clear
perspicuous | (of language) transparently clear, easily understandable, writes in a limpid style, lucid directions, a luculent oration- Robert Burton, pellucid prose, a crystal clear explanation, a perspicuous argument |
crystalline
crystal clear
limpid
lucid
pellucid
transparent | transmitting light, able to be seen through with clarity, the cold crystalline water of melted snow, crystal clear skies, could see the sand on the bottom of the limpid pool, lucid air, a pellucid brook, transparent crystal |
| controlled | restrained or managed or kept within certain bounds, controlled emotions, the controlled release of water from reservoirs |
| price-controlled | having the price regulated or controlled by government |
| radio-controlled | operated and guided by radio, a radio-controlled airplane |
unmanned
remote-controlled | lacking a crew, an unmanned satellite to Mars |