The mortar and pestle are used to crush solids into powder: it is often used as a symbol for pharmacists in the US, and is the subject of a very funny Danny Kaye wordplay bit in the movie "The Court Jester" having to do with "the vessel with the pestle".
Please see the related link below:
to crush a substance into powder
The pestle is used for pounding and grinding, and the mortar is the bowl.
That is a mortar and pestle.
The pestle and mortar is a bowl with a miniature club. The pestle and mortar are used for grinding/pounding herbs/spices.
Try Pestle as in Pestle and Mortar
You use pestle and mortar on your item.
Use them on a Pestle and Mortar.
Mortars and pestles are used for food preparation. They are used to crush or grind food items. The food is placed into the mortar, and then the pestle is used to crush it.
A mortar and pestle
http://www.phisick.com/images/apoth/mortar-and-pestle-brass-101.jpg
it is still called a mortar and pestle :) at least thats what our science teacher said..
Chemicals are ground into powder using a mortar and pestle.
I believe you use a pestle and mortar on them and they will become crushed.