lizard tails
(organic chemistry, especially in combination) A univalent radical derived from butanoic acid
Alternative form of old as the hills
plural of lizard tail
(physics) the less common of the two stable isotopes of carbon, ¹³₆C, having six protons and seven neutrons
子どもたちは日当たりの良い壁の近くで落ちていたトカゲのしっぽを集めて、理科の先生に見せた。
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