molar是什麼意思 molar的用法 molar怎麼讀

molar

英 ['məʊlə]美 ['molɚ]

adj. 臼齒的；摩爾的；磨碎的

n. 臼齒，[解剖] 磨牙

星級詞彙:★★

中文詞源

molar 磨牙，臼齒

來自拉丁語molaris dens,磨牙，來自molaris,磨，詞源同mill,dens,牙齒，詞源同tooth.

英語詞源

molar

molar: see mill

molar (n.)

"grinding tooth," mid-14c., from Latin molaris dens "grinding tooth," from mola "millstone," from PIE root *mel- "to rub, grind" (see mill (n.1)). As an adjective in this sense from 1620s. In Old English they were cweornteð "quern-teeth."

molar (adj.)

in chemistry, "pertaining to one mole," 1902, from mole (4) + -ar.

權威例句

1. Expression of hydrogenion concentrations in terms of molar concentrations is rather cumbersome.

用摩爾濃度表示氫離子濃度是相當麻煩的.

2. The President sat glumly rubbing his upper molar, saying nothing.

總統愁眉苦臉地坐在那裏,磨着他的上牙, 一句話也沒有說.

3. In 1927, at Chou - k'ou - tien, near Peking, a hominid lower molar of unusual pattern was discovered.

1927年, 在北京附近的周口店發現一顆形狀異常的人類下臼齒.

4. Rough calculations obtained by use of molar concentrations rather than activities are sufficient.

根據克分子濃度而非根據活度得到的粗略計算結果即可滿足要求.

5. THE INFLUENCE OF DENTAL FACTORS TO ERUPTION OF THE MANDIBULAR THIRD MOLAR.

牙齒因素對下頜第三磨牙萌出的影響.

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