Dictionary.com

molar

1
[ moh-ler ]
/ ˈmoʊ lər /
Save This Word!

noun
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
adapted for grinding, as teeth.
pertaining to such teeth.
QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of molar

1
First recorded in 1350–1400; Middle English molares (plural), from Latin molāris “grinding tooth, molar,” equivalent to mol(a) “millstone, mill” + -āris -ar1

Other definitions for molar (2 of 3)

molar2
[ moh-ler ]
/ ˈmoʊ lər /

adjective
Physics. pertaining to a body of matter as a whole, as contrasted with molecular and atomic.

Origin of molar

2
First recorded in 1860–65; from Latin mōl(ēs) “a lump; large mass” + -ar1

Other definitions for molar (3 of 3)

molar3
[ moh-ler ]
/ ˈmoʊ lər /

adjective Chemistry.
pertaining to a solution containing one mole of solute per liter of solution.
noting or pertaining to gram-molecular weight.

Origin of molar

3
First recorded in 1860–65; mole4 + -ar1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use molar in a sentence

British Dictionary definitions for molar (1 of 2)

molar1
/ (ˈməʊlə) /

noun
any of the 12 broad-faced grinding teeth in man
a corresponding tooth in other mammals
adjective
of, relating to, or designating any of these teeth
used for or capable of grinding

Word Origin for molar

C16: from Latin molāris for grinding, from mola millstone

British Dictionary definitions for molar (2 of 2)

molar2
/ (ˈməʊlə) /

adjective
(of a physical quantity) per unit amount of substancemolar volume
(not recommended in technical usage) (of a solution) containing one mole of solute per litre of solution

Word Origin for molar

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

Medical definitions for molar (1 of 2)

molar 11
[ mōlər ]

adj.
Relating to or being a solution that contains one mole of solute per liter of solution.
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.
Of, relating to, or being a solution whose concentration is expressed as moles of solute per liter of solution.
Containing one mole of a substance.

Medical definitions for molar (2 of 2)

molar 22
[ mōlər ]

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.
Of or relating to the molars.
Capable of grinding.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for molar (1 of 2)

molar1
[ mōlər ]

Chemistry
Relating to a mole.
Containing one mole of solute per liter of solution.

Scientific definitions for molar (2 of 2)

molar2
[ mōlər ]

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK