follow Dictionary.com

Get the details behind our redesign

molar1

[moh-ler] /ˈmoʊ lər/
noun
1.
Also called molar tooth. a tooth having a broad biting surface adapted for grinding, being one of twelve in humans, with three on each side of the upper and lower jaws.
adjective
2.
adapted for grinding, as teeth.
3.
pertaining to such teeth.
Origin
1535-1545
1535-45; < Latin molāris grinder, short for (dēns) molāris grinding (tooth), equivalent to mol(a) millstone + -āris -ar1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for molar tooth

molar1

/ˈməʊlə/
noun
1.
any of the 12 broad-faced grinding teeth in man
2.
a corresponding tooth in other mammals
adjective
3.
of, relating to, or designating any of these teeth
4.
used for or capable of grinding
Word Origin
C16: from Latin molāris for grinding, from mola millstone

molar2

/ˈməʊlə/
adjective
1.
(of a physical quantity) per unit amount of substance molar volume
2.
(not recommended in technical usage) (of a solution) containing one mole of solute per litre of solution
Word Origin
C19: from Latin mōlēs a mass
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for molar tooth
molar
"grinding tooth," 1540s, from L. molaris dens "grinding tooth," from mola "millstone," from PIE base *mel- "to rub, grind" (see mill (1)).
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
molar tooth in Medicine

molar mo·lar1 (mō'lər)
adj.

  1. Relating to or being a solution that contains one mole of solute per liter of solution.

  2. Of, relating to, or characterizing the physical properties of a body of matter as a whole, especially the mass of a body, as opposed to the molecular or atomic properties.


  3. Abbr. M Of, relating to, or being a solution whose concentration is expressed as moles of solute per liter of solution.

  4. Containing one mole of a substance.

molar 2
n.
A tooth having a crown with three, four, or five cusps on the grinding surface, a bifid root in the lower jaw, and three conical roots in the upper jaw. In permanent dentition, there are three on either side behind the premolars; in deciduous dentition, there are two on either side behind the canines. adj.

  1. Of or relating to the molars.

  2. Capable of grinding.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
molar tooth in Science
molar 1
  (mō'lər)   
Chemistry
  1. Relating to a mole.

  2. Containing one mole of solute per liter of solution.


molar 2
  (mō'lər)   
Any of the teeth located toward the back of the jaws, having broad crowns for grinding food. Adult humans have 12 molars.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of The Day

Difficulty index for molar

Most English speakers likely know this word

Word Value for molar

7
9
Scrabble Words With Friends