Molar



GRE 蓝宝

解释

GRE 红宝书

• n. 臼齿
• ［记］ mol ( 磨) +ar -> 磨的牙 -> 臼齿

Webster Collegiate

I. noun

• Etymology: Middle English molares, plural, from Latin molaris, from molaris of a mill, from mola millstone — more at mill
• Date: 14th century
• a tooth with a rounded or flattened surface adapted for grinding; specifically one of the cheek teeth in mammals behind the incisors and canines — see tooth illustration

II. adjective

• Date: 1626
• 1. pulverizing by friction ; grinding
• 2. of, relating to, or located near the molar teeth

III. adjective

• Etymology: ［sup］5［/sup］mole
• Date: 1902
• 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
• ? molarity noun

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