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molar

1
[ moh-ler ]
/ ˈmoʊ lər /
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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.
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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. 2023

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

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.
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