Crystal

/ˈkrɪs.təl/

Meaning & Definition

noun
A solid material whose atoms are arranged in a highly ordered, repeating pattern.
The geologist found a beautiful quartz crystal in the rock formation.
A piece of a substance that has a definite geometric shape and is typically transparent or translucent.
She wore a necklace with a large amethyst crystal that sparkled in the light.
A clear, transparent glass or high-quality glass used for making decorative items.
The chandelier was made of fine crystal, reflecting light in every direction.
verb
To form or cause to form crystals.
The sugar began to crystal in the bottom of the jar after sitting for a long time.
adjective
Clear and transparent, like a crystal.
The lake was so crystal clear that you could see the fish swimming beneath the surface.

Etymology

Middle English, from Old French 'cristal', from Latin 'crystallus', from Greek 'kristallos', meaning 'frozen'.

Common Phrases and Expressions

crystal clear
Completely clear or understandable.
crystal ball
A spherical object used in divination, often referred to for predicting the future.
crystal structure
The ordered arrangement of atoms in a crystal.

Related Words

prism
A solid object that refracts light into a spectrum.
glass
A hard, transparent material made by fusing sand with alkali.
gemstone
A precious or semi-precious stone, especially when cut and polished.

Slang Meanings

Crystal methamphetamine.
He got hooked on crystal after trying it at a party.
Very clear or perfect.
Her explanation was crystal, so everyone understood.