Word Explorer
Children's Dictionary
Help
Help
Help
 
   
Lookup History
hourglass

hour·glass

hourglass

 
pronunciation:
aUr glaes
features:
Word Explorer
part of speech: noun
definition: an instrument used to measure time that sends sand through a narrow opening between two larger glass bulbs. It takes exactly one hour for the sand to pass from one bulb to the other.
 
Word Explorer
See
  measurement, tool