Molar


Molar
In dentistry, a molar is one of the posterior teeth well adapted to grinding, in keeping with its origin from the Latin mola meaning millstone.
* * *
1. Denoting a grinding, abrading, or wearing away. [L. molaris, relating to a mill, millstone] 2. SYN: m. tooth. 3. Massive; relating to a mass; not molecular. [L. moles, mass] 4. Denoting a concentration of 1 gram-molecular weight (1 mol) of solute per liter of solution, the common unit of concentration in chemistry. Cf.:molal. 5. Denoting specific quantity, e.g., m. volume (volume of 1 mol).
- first m., first permanent m. sixth permanent tooth or fourth deciduous tooth in the maxilla and mandible on either side of the midsagittal plane of the head following the arch form.
- Moon molars small dome-shaped first m. teeth occurring in congenital syphilis.
- mulberry m. a m. tooth with alternating nonanatomical depressions and rounded enamel nodules on its crown surface, usually associated with congenital syphilis.
- second m. seventh permanent or fifth deciduous tooth in the maxilla and mandible on either side of the midsagittal plane of the head following the arch form.
- sixth-year m. the first permanent m. tooth.
- third m. SYN: third-year m. tooth.
- twelfth-year m. the second permanent m. tooth.

* * *

mo·lar 'mō-lər n a tooth with a rounded or flattened surface adapted for grinding specif one of the mammalian teeth behind the incisors and canines sometimes including the premolars but more exactly restricted to the three posterior pairs in each human jaw on each side which are not preceded by milk teeth
molar adj
1 a) pulverizing by friction <\molar teeth>
b) of, relating to, or located near the molar teeth <\molar gland>
2) of, relating to, possessing the qualities of, or characterized by a hydatidiform mole <\molar pregnancy>
molar adj
1) of or relating to a mass of matter as distinguished from the properties or motions of molecules or atoms
2) of or relating to larger units of behavior esp. as relatable to a prior deprivation or motivational pattern of the organism <interest in such \molar problems of personality as the ego functions (R. R. Holt)> compare MOLECULAR (2)
molar adj
1) of or relating to a mole of a substance <the \molar volume of a gas>
2) containing one mole of solute in one liter of solution

* * *

n.
in the permanent dentition, the sixth, seventh, or eighth tooth from the midline on each side in each jaw (see also wisdom tooth). Permanent molars do not replace primary teeth. In the primary dentition, molars are the fourth and fifth teeth from the midline on each side in each jaw.

* * *

mo·lar (M) (M) (moґlər) 1. pertaining to a mole of a substance, such as molar mass or molar absorptivity, i.e., the quantity of some property associated with a mole of the substance. 2. a measure of the concentration of a solute, expressed as the number of moles of solute per liter of solution, e.g., 0.25M = 0.25 mole per liter (mol/L). The latter notation is used in the SI system.

Medical dictionary. 2011.

Synonyms:

Look at other dictionaries:

  • Molar — may refer to: Molar (tooth), the fourth kind of tooth in mammals Molar (grape), another name for the Spanish wine grape Listan Negro Molar concentration, a unit of concentration, or molarity, of solutions equal to 1 mole per litre Molar volume El …   Wikipedia

  • Molar — ist: das Adjektiv zur Molarität, der Konzentrationsangabe in mol/l ein großer Backenzahn, siehe Molar (Zahn) eine portugiesische Rebsorte, Molar (Rebsorte) Siehe auch: El Molar Mollard …   Deutsch Wikipedia

  • molar — verbo intransitivo 1. Uso/registro: coloquial. Gustar (una persona o una cosa) a una persona: Me mola tu camisa. La moto de Roberto mola muchísimo. 2. Uso/registro: coloquial. Presumir …   Diccionario Salamanca de la Lengua Española

  • Molar — Mo lar, a. [L. molaris, fr. mola mill, fr. molere to grind in a mill. See {Mill} the machine.] Having power to grind; grinding; as, the molar teeth; also, of or pertaining to the molar teeth. Bacon. [1913 Webster] …   The Collaborative International Dictionary of English

  • molar — mo lar (m[=o] l[ e]r or m[=o] l[aum]r), a. [L. moles mass.] (Chem.) Being at a concentration having the designated number of moles (of solute) per liter of solvent; as, an 0.2 molar solution of sodium chloride in water is close to isotonic. [PJC] …   The Collaborative International Dictionary of English

  • molar — Se conjuga como: amar Infinitivo: Gerundio: Participio: molar molando molado     Indicativo   presente imperfecto pretérito futuro condicional yo tú él, ella, Ud. nosotros vosotros ellos, ellas, Uds. molo molas mola molamos moláis molan molaba… …   Wordreference Spanish Conjugations Dictionary

  • molar — adj. 2 g. 1. Próprio para moer; que mói. 2. Mole, brando. 3. Que tem casca pouco dura (amêndoa). 4. Diz se de vários frutos. • s. m. 5. Dente molar (queixal) …   Dicionário da Língua Portuguesa

  • molar — Ⅰ. molar [1] ► NOUN ▪ a grinding tooth at the back of a mammal s mouth. ORIGIN from Latin mola millstone . Ⅱ. molar [2] ► ADJECTIVE ▪ acting on or by means of large masses or units …   English terms dictionary

  • molar — molar1 [mō′lər] adj. [L molaris, a mill < mola, millstone: see MILL1] 1. used for or capable of grinding 2. designating or of a tooth or teeth adapted for grinding n. a molar tooth: in humans there are usually twelve permanent molars, three on …   English World dictionary

  • molar — mo lar (m[=o] l[ e]r), a. [L. moles mass.] (Mech.) Of or pertaining to a mass of matter; said of the properties or motions of masses, as distinguished from those of molecules or atoms. [PJC] …   The Collaborative International Dictionary of English

  • Molar — Mo lar, n. (Anat.) Any one of the teeth back of the incisors and canines. The molars which replace the deciduous or milk teeth are designated as {premolars}, and those which are not preceded by deciduous teeth are sometimes called {true molars}.… …   The Collaborative International Dictionary of English


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.