Webster's English Dictionary

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molar

1. mo.lar \'mo--l*r\ n [L molaris, fr. molaris of a mill, fr. mola 
   millstone - mor]e at MILL : a tooth with a rounded or flattened surface 
   adapted for grinding; spe cif : one of the cheek teeth in mammals behind 
   the incisors and canines
2. molar aj 1: pulverizing by friction : GRINDING  2: of, relating to, or 
   located near the molar teeth 
3. molar \mo--'lar-*t-e-\ aj [L moles mass - more at MOLE] [5mole] 1: of or 
   relating to a mass of matter as distinguished from the properties  or 
   motions of molecules or atoms 2: of, relating to, or containing a mole or 
   molecules and esp. one mole of  solute in 1000 milliliters of solution - 
   mo.lar.i.ty n