molar

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mo·lar1 / ˈmōlər/ • n. a grinding tooth at the back of a mammal's mouth. mo·lar2 • adj. of or relating to mass; acting on or by means of large masses or units. mo·lar3 • adj. Chem. of or relating to one mole of a substance. ∎  (of a solution) containing one mole of solute per liter of solvent. DERIVATIVES: mo·lar·i·ty / mōˈle(ə)ritē/ n.

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molar
1. A broad ridged tooth in the adult dentition of mammals (see permanent teeth), found at the back of the jaws behind the premolars. There are two or more molars on each side of both jaws; their surfaces are raised into ridges or cusps for grinding food during chewing. In humans the third (and most posterior) molar does not appear until young adulthood: these molars are known as wisdom teeth.

2. Denoting that an extensive physical property is being expressed per amount of substance, usually per mole. For example, the molar heat capacity of a compound is the heat capacity of that compound per unit amount of substance, i.e. it is usually expressed in J K–1 mol–1.

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molar grinding (tooth). XVI. — L. molāris of a mill, sb. millstone, grinder tooth, f. mola millstone; see MILL, -AR.

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molar (moh-ler) n. the fourth or fifth tooth (in the primary dentition) or the sixth, seventh, or eighth tooth (in the permanent dentition) from the midline on each side of each jaw. See also dentition.

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molar In mammals, one of the posterior teeth, commonly used for crushing, which are not preceded by milk teeth. Usually molars have several roots and their biting surface is formed from patterns of projections and ridges.

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molar In mammals, one of the posterior teeth, commonly used for crushing, that are not preceded by milk teeth. Usually molars have several roots and their biting surface is formed from patterns of projections and ridges.