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Origin and history of molar

molar(n.)

"grinding tooth, back-tooth," mid-14c., from Latin molaris dens "grinding tooth," from mola "millstone," from PIE root *mele- "to crush, grind." As an adjective, "grinding, crushing," as distinguished from "cutting" or "piercing," from 1620s. In Old English they were cweornteð "quern-teeth."

molar(adj.)

in chemistry, "pertaining to one mole of a substance," 1902, from mole (n.4) + -ar. Earlier it meant "pertaining to mass," from Latin moles "mass."

Entries linking to molar

unit of molecular quantity, 1902, from German Mol coined 1900 by German chemist Wilhelm Ostwald, short for Molekül (see molecule).

"premolar tooth," 1841, from pre- "before" + molar. Related: Premolars.

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