A solid material whose atoms are arranged in a highly ordered, repeating pattern extending in all three spatial dimensions. noun
The scientist examined the crystal structure under a microscope.
Salt forms cubic crystals when it crystallizes.
A piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces. noun
She admired the beautiful crystal formations in the cave.
The jeweler showed us a stunning crystal that had been cut into a perfect shape.
A clear, transparent mineral, especially quartz. noun
The pendant was made of a large, clear crystal.
The crystal in her ring sparkled in the sunlight.
A high-quality, clear, colorless glass, often with a high lead content, used for making fine glassware. noun
They drank champagne from crystal glasses.
The cabinet was filled with fine crystal vases and goblets.
A transparent piece of quartz or similar mineral used in electronics and watches to control oscillation frequency. noun
The watch uses a quartz crystal to keep accurate time.
Crystal oscillators are essential components in many electronic devices.
A term used to describe something that is clear or transparent, often used metaphorically. adjective
Her intentions were crystal clear.
The instructions were written in crystal-clear language.