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molar1

[moh-ler]
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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.
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adjective
  1. adapted for grinding, as teeth.
  2. pertaining to such teeth.
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Origin of molar1

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 Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for molars

molar1

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

C16: from Latin molāris for grinding, from mola millstone

molar2

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

Word Origin and History for molars

molar

n.

"grinding tooth," mid-14c., from Latin molaris dens "grinding tooth," from mola "millstone," from PIE root *mel- "to rub, grind" (see mill (n.1)). As an adjective in this sense from 1620s. In Old English they were cweornteð "quern-teeth."

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molar

adj.

in chemistry, "pertaining to one mole," 1902, from mole (4) + -ar.

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Online Etymology Dictionary, © 2010 Douglas Harper

molars in Science

molar1

[mōlər]
Chemistry
  1. Relating to a mole.
  2. Containing one mole of solute per liter of solution.
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molar2

[mōlər]
  1. Any of the teeth located toward the back of the jaws, having broad crowns for grinding food. Adult humans have 12 molars.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

molars in Culture

molars

[(moh-luhrz)]

The teeth with broad surfaces at the back of the mouth that serve to grind food. Including the wisdom teeth, adults have twelve molars — six on the top and six on the bottom. (Compare incisors and canines.)

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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.