Molar

/ˈmoʊlər/

Meaning & Definition

noun
A type of tooth used for grinding food, usually located at the back of the mouth.
The dentist examined my molar to see if it had any cavities.
A unit of amount of substance in chemistry, equal to the number of atoms or molecules in one mole.
In the laboratory, we prepared a solution with a molar concentration of 0.5 M.
adjective
Relating to a molar or molars.
He had a molar extraction due to severe decay.

Etymology

From Latin 'molaris', meaning 'millstone' or 'grinding stone'.

Common Phrases and Expressions

molar concentration
The concentration of a solution expressed in moles of solute per liter of solution.
wisdom molar
The third molar, often referred to as the wisdom tooth.

Related Words

premolar
A tooth situated between the canine and molar teeth, used for grinding.
incisor
A narrow-edged tooth at the front of the mouth, used for cutting.

Slang Meanings

Referring to a difficult situation, due to pain in a molar.
That exam was a real molar!
Describing someone who is slow or dull, as if they have a cavity.
Don't be a molar, pick up the pace!