lookup history

Word Explorer
Children's Dictionary
Help
Help
Help
Look-up History
Your look-up history is saved temporarily in the session. Please log in to saved it in your own account, and subscribe for unlimited saving.
Show words looked up
Find a word or date [Clear]
WordSort by Word # DateSort by Date Definition Site Level
crystal 1 today a piece of a certain substance that is made when the substance changes from a liquid to a solid. In becoming solid, as when water turns to ice, this type of substance takes on a structure that has a repeating pattern of flat surfaces. These flat surfaces reflect light and can make the substance sparkle when looked at from different directions. [5 definitions] Kids Ch.